diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9a13c9b169d..7a30be169c2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -42,6 +42,8 @@ Ref: https://keepachangelog.com/en/1.0.0/
 
 ### State Machine Breaking
 
+* (transfer) [\#2377](https://github.com/cosmos/ibc-go/pull/2377) Adding `sequence` to `MsgTransferResponse`.
+
 ### Improvements
 
 ### Features
diff --git a/docs/ibc/proto-docs.md b/docs/ibc/proto-docs.md
index ac68d818cd2..03db61a0cc7 100644
--- a/docs/ibc/proto-docs.md
+++ b/docs/ibc/proto-docs.md
@@ -2158,6 +2158,11 @@ https://github.com/cosmos/ibc/tree/master/spec/app/ics-020-fungible-token-transf
 MsgTransferResponse defines the Msg/Transfer response type.
 
 
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| `sequence` | [uint64](#uint64) |  | sequence number of the transfer packet sent |
+
+
 
 
 
diff --git a/modules/apps/transfer/keeper/msg_server.go b/modules/apps/transfer/keeper/msg_server.go
index 41368f3f984..e1cb4e8cc6e 100644
--- a/modules/apps/transfer/keeper/msg_server.go
+++ b/modules/apps/transfer/keeper/msg_server.go
@@ -19,9 +19,10 @@ func (k Keeper) Transfer(goCtx context.Context, msg *types.MsgTransfer) (*types.
 		return nil, err
 	}
 
-	if err := k.SendTransfer(
+	sequence, err := k.sendTransfer(
 		ctx, msg.SourcePort, msg.SourceChannel, msg.Token, sender, msg.Receiver, msg.TimeoutHeight, msg.TimeoutTimestamp,
-	); err != nil {
+	)
+	if err != nil {
 		return nil, err
 	}
 
@@ -39,5 +40,5 @@ func (k Keeper) Transfer(goCtx context.Context, msg *types.MsgTransfer) (*types.
 		),
 	})
 
-	return &types.MsgTransferResponse{}, nil
+	return &types.MsgTransferResponse{Sequence: sequence}, nil
 }
diff --git a/modules/apps/transfer/keeper/msg_server_test.go b/modules/apps/transfer/keeper/msg_server_test.go
index 17900bd9b17..e0a9037e343 100644
--- a/modules/apps/transfer/keeper/msg_server_test.go
+++ b/modules/apps/transfer/keeper/msg_server_test.go
@@ -61,6 +61,7 @@ func (suite *KeeperTestSuite) TestMsgTransfer() {
 		res, err := suite.chainA.GetSimApp().TransferKeeper.Transfer(sdk.WrapSDKContext(suite.chainA.GetContext()), msg)
 
 		if tc.expPass {
+			suite.Require().NotEqual(res.Sequence, uint64(0))
 			suite.Require().NoError(err)
 			suite.Require().NotNil(res)
 		} else {
diff --git a/modules/apps/transfer/keeper/relay.go b/modules/apps/transfer/keeper/relay.go
index 48816f5356b..8576f849a52 100644
--- a/modules/apps/transfer/keeper/relay.go
+++ b/modules/apps/transfer/keeper/relay.go
@@ -60,17 +60,41 @@ func (k Keeper) SendTransfer(
 	timeoutHeight clienttypes.Height,
 	timeoutTimestamp uint64,
 ) error {
+	_, err := k.sendTransfer(
+		ctx,
+		sourcePort,
+		sourceChannel,
+		token,
+		sender,
+		receiver,
+		timeoutHeight,
+		timeoutTimestamp,
+	)
+	return err
+}
+
+// sendTransfer handles transfer sending logic.
+func (k Keeper) sendTransfer(
+	ctx sdk.Context,
+	sourcePort,
+	sourceChannel string,
+	token sdk.Coin,
+	sender sdk.AccAddress,
+	receiver string,
+	timeoutHeight clienttypes.Height,
+	timeoutTimestamp uint64,
+) (uint64, error) {
 	if !k.GetSendEnabled(ctx) {
-		return types.ErrSendDisabled
+		return 0, types.ErrSendDisabled
 	}
 
 	if k.bankKeeper.BlockedAddr(sender) {
-		return sdkerrors.Wrapf(sdkerrors.ErrUnauthorized, "%s is not allowed to send funds", sender)
+		return 0, sdkerrors.Wrapf(sdkerrors.ErrUnauthorized, "%s is not allowed to send funds", sender)
 	}
 
 	sourceChannelEnd, found := k.channelKeeper.GetChannel(ctx, sourcePort, sourceChannel)
 	if !found {
-		return sdkerrors.Wrapf(channeltypes.ErrChannelNotFound, "port ID (%s) channel ID (%s)", sourcePort, sourceChannel)
+		return 0, sdkerrors.Wrapf(channeltypes.ErrChannelNotFound, "port ID (%s) channel ID (%s)", sourcePort, sourceChannel)
 	}
 
 	destinationPort := sourceChannelEnd.GetCounterparty().GetPortID()
@@ -79,7 +103,7 @@ func (k Keeper) SendTransfer(
 	// get the next sequence
 	sequence, found := k.channelKeeper.GetNextSequenceSend(ctx, sourcePort, sourceChannel)
 	if !found {
-		return sdkerrors.Wrapf(
+		return 0, sdkerrors.Wrapf(
 			channeltypes.ErrSequenceSendNotFound,
 			"source port: %s, source channel: %s", sourcePort, sourceChannel,
 		)
@@ -89,7 +113,7 @@ func (k Keeper) SendTransfer(
 	// See spec for this logic: https://github.com/cosmos/ibc/tree/master/spec/app/ics-020-fungible-token-transfer#packet-relay
 	channelCap, ok := k.scopedKeeper.GetCapability(ctx, host.ChannelCapabilityPath(sourcePort, sourceChannel))
 	if !ok {
-		return sdkerrors.Wrap(channeltypes.ErrChannelCapabilityNotFound, "module does not own channel capability")
+		return 0, sdkerrors.Wrap(channeltypes.ErrChannelCapabilityNotFound, "module does not own channel capability")
 	}
 
 	// NOTE: denomination and hex hash correctness checked during msg.ValidateBasic
@@ -102,7 +126,7 @@ func (k Keeper) SendTransfer(
 	if strings.HasPrefix(token.Denom, "ibc/") {
 		fullDenomPath, err = k.DenomPathFromHash(ctx, token.Denom)
 		if err != nil {
-			return err
+			return 0, err
 		}
 	}
 
@@ -125,7 +149,7 @@ func (k Keeper) SendTransfer(
 		if err := k.bankKeeper.SendCoins(
 			ctx, sender, escrowAddress, sdk.NewCoins(token),
 		); err != nil {
-			return err
+			return 0, err
 		}
 
 	} else {
@@ -135,7 +159,7 @@ func (k Keeper) SendTransfer(
 		if err := k.bankKeeper.SendCoinsFromAccountToModule(
 			ctx, sender, types.ModuleName, sdk.NewCoins(token),
 		); err != nil {
-			return err
+			return 0, err
 		}
 
 		if err := k.bankKeeper.BurnCoins(
@@ -164,7 +188,7 @@ func (k Keeper) SendTransfer(
 	)
 
 	if err := k.ics4Wrapper.SendPacket(ctx, channelCap, packet); err != nil {
-		return err
+		return 0, err
 	}
 
 	defer func() {
@@ -183,7 +207,7 @@ func (k Keeper) SendTransfer(
 		)
 	}()
 
-	return nil
+	return sequence, nil
 }
 
 // OnRecvPacket processes a cross chain fungible token transfer. If the
diff --git a/modules/apps/transfer/types/tx.pb.go b/modules/apps/transfer/types/tx.pb.go
index 6d3c210450e..3ef41191c10 100644
--- a/modules/apps/transfer/types/tx.pb.go
+++ b/modules/apps/transfer/types/tx.pb.go
@@ -87,6 +87,8 @@ var xxx_messageInfo_MsgTransfer proto.InternalMessageInfo
 
 // MsgTransferResponse defines the Msg/Transfer response type.
 type MsgTransferResponse struct {
+	// sequence number of the transfer packet sent
+	Sequence uint64 `protobuf:"varint,1,opt,name=sequence,proto3" json:"sequence,omitempty"`
 }
 
 func (m *MsgTransferResponse) Reset()         { *m = MsgTransferResponse{} }
@@ -122,6 +124,13 @@ func (m *MsgTransferResponse) XXX_DiscardUnknown() {
 
 var xxx_messageInfo_MsgTransferResponse proto.InternalMessageInfo
 
+func (m *MsgTransferResponse) GetSequence() uint64 {
+	if m != nil {
+		return m.Sequence
+	}
+	return 0
+}
+
 func init() {
 	proto.RegisterType((*MsgTransfer)(nil), "ibc.applications.transfer.v1.MsgTransfer")
 	proto.RegisterType((*MsgTransferResponse)(nil), "ibc.applications.transfer.v1.MsgTransferResponse")
@@ -132,38 +141,39 @@ func init() {
 }
 
 var fileDescriptor_7401ed9bed2f8e09 = []byte{
-	// 494 bytes of a gzipped FileDescriptorProto
+	// 506 bytes of a gzipped FileDescriptorProto
 	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x8c, 0x93, 0x31, 0x6f, 0xd3, 0x40,
-	0x14, 0xc7, 0x6d, 0x92, 0x86, 0x70, 0x51, 0x2b, 0x30, 0xb4, 0x72, 0xa3, 0x62, 0x47, 0x96, 0x90,
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-	0x7d, 0x3d, 0x9c, 0x13, 0xf1, 0x3d, 0xeb, 0xee, 0x62, 0xd1, 0x6f, 0xc0, 0xc8, 0x47, 0xe8, 0xcc,
-	0x27, 0xe9, 0xd8, 0x91, 0x29, 0x42, 0xc9, 0xc2, 0x9c, 0x4f, 0x80, 0xce, 0xbe, 0x84, 0x64, 0x41,
-	0x4c, 0xf6, 0x7b, 0xff, 0xdf, 0xbb, 0xbf, 0xde, 0xbd, 0x77, 0xe8, 0x19, 0xcf, 0x28, 0x49, 0xcb,
-	0x72, 0xc2, 0x69, 0xaa, 0x39, 0x08, 0x45, 0xb4, 0x4c, 0x85, 0xfa, 0xcc, 0x24, 0xa9, 0x62, 0xa2,
-	0xbf, 0xe2, 0x52, 0x82, 0x06, 0xef, 0x88, 0x67, 0x14, 0x6f, 0x62, 0x78, 0x85, 0xe1, 0x2a, 0xee,
-	0x3f, 0xc9, 0x21, 0x87, 0x1a, 0x24, 0xe6, 0xaf, 0xa9, 0xe9, 0x07, 0x14, 0x54, 0x01, 0x8a, 0x64,
-	0xa9, 0x62, 0xa4, 0x8a, 0x33, 0xa6, 0xd3, 0x98, 0x50, 0xe0, 0xc2, 0xea, 0xa1, 0xb1, 0xa6, 0x20,
-	0x19, 0xa1, 0x13, 0xce, 0x84, 0x36, 0x86, 0xcd, 0x5f, 0x03, 0x44, 0x3f, 0x5a, 0xa8, 0x77, 0xae,
-	0xf2, 0x0b, 0xeb, 0xe4, 0x9d, 0xa0, 0x9e, 0x82, 0xa9, 0xa4, 0xec, 0xb2, 0x04, 0xa9, 0x7d, 0x77,
-	0xe0, 0x0e, 0x1f, 0x8c, 0x0e, 0x96, 0xb3, 0xd0, 0xbb, 0x4e, 0x8b, 0xc9, 0x69, 0xb4, 0x21, 0x46,
-	0x09, 0x6a, 0xa2, 0xf7, 0x20, 0xb5, 0xf7, 0x06, 0xed, 0x59, 0x8d, 0x8e, 0x53, 0x21, 0xd8, 0xc4,
-	0xbf, 0x57, 0xd7, 0x1e, 0x2e, 0x67, 0xe1, 0xfe, 0x56, 0xad, 0xd5, 0xa3, 0x64, 0xb7, 0x49, 0x9c,
-	0x35, 0xb1, 0xf7, 0x1a, 0xed, 0x68, 0xf8, 0xc2, 0x84, 0xdf, 0x1a, 0xb8, 0xc3, 0xde, 0xf1, 0x21,
-	0x6e, 0x7a, 0xc3, 0xa6, 0x37, 0x6c, 0x7b, 0xc3, 0x67, 0xc0, 0xc5, 0xa8, 0x7d, 0x3b, 0x0b, 0x9d,
-	0xa4, 0xa1, 0xbd, 0x03, 0xd4, 0x51, 0x4c, 0x5c, 0x31, 0xe9, 0xb7, 0x8d, 0x61, 0x62, 0x23, 0xaf,
-	0x8f, 0xba, 0x92, 0x51, 0xc6, 0x2b, 0x26, 0xfd, 0x9d, 0x5a, 0x59, 0xc7, 0xde, 0x27, 0xb4, 0xa7,
-	0x79, 0xc1, 0x60, 0xaa, 0x2f, 0xc7, 0x8c, 0xe7, 0x63, 0xed, 0x77, 0x6a, 0xcf, 0x3e, 0x36, 0x33,
-	0x30, 0xf7, 0x85, 0xed, 0x2d, 0x55, 0x31, 0x7e, 0x5b, 0x13, 0xa3, 0xa7, 0xc6, 0xf4, 0x6f, 0x33,
-	0xdb, 0xf5, 0x51, 0xb2, 0x6b, 0x13, 0x0d, 0xed, 0xbd, 0x43, 0x8f, 0x56, 0x84, 0xf9, 0x2a, 0x9d,
-	0x16, 0xa5, 0x7f, 0x7f, 0xe0, 0x0e, 0xdb, 0xa3, 0xa3, 0xe5, 0x2c, 0xf4, 0xb7, 0x0f, 0x59, 0x23,
-	0x51, 0xf2, 0xd0, 0xe6, 0x2e, 0x56, 0xa9, 0xd3, 0xee, 0xb7, 0x9b, 0xd0, 0xf9, 0x7d, 0x13, 0x3a,
-	0xd1, 0x3e, 0x7a, 0xbc, 0x31, 0xab, 0x84, 0xa9, 0x12, 0x84, 0x62, 0xc7, 0x80, 0x5a, 0xe7, 0x2a,
-	0xf7, 0xc6, 0xa8, 0xbb, 0x1e, 0xe3, 0x73, 0xfc, 0xaf, 0x65, 0xc2, 0x1b, 0xa7, 0xf4, 0xe3, 0xff,
-	0x46, 0x57, 0x86, 0xa3, 0x0f, 0xb7, 0xf3, 0xc0, 0xbd, 0x9b, 0x07, 0xee, 0xaf, 0x79, 0xe0, 0x7e,
-	0x5f, 0x04, 0xce, 0xdd, 0x22, 0x70, 0x7e, 0x2e, 0x02, 0xe7, 0xe3, 0x49, 0xce, 0xf5, 0x78, 0x9a,
-	0x61, 0x0a, 0x05, 0xb1, 0xab, 0xc9, 0x33, 0xfa, 0x22, 0x07, 0x52, 0xbd, 0x22, 0x05, 0x5c, 0x4d,
-	0x27, 0x4c, 0x99, 0xa7, 0xb0, 0xf1, 0x04, 0xf4, 0x75, 0xc9, 0x54, 0xd6, 0xa9, 0xd7, 0xf1, 0xe5,
-	0x9f, 0x00, 0x00, 0x00, 0xff, 0xff, 0xd0, 0x6e, 0x0e, 0x0d, 0x2c, 0x03, 0x00, 0x00,
+	0x14, 0xc7, 0x6d, 0x92, 0x86, 0x70, 0x51, 0x2b, 0x30, 0x50, 0xb9, 0x51, 0xb1, 0x23, 0x4b, 0x48,
+	0x61, 0xe0, 0x4e, 0x2e, 0xa0, 0x4a, 0x9d, 0x50, 0xba, 0xc0, 0x50, 0x09, 0xac, 0x4e, 0x2c, 0xc5,
+	0xbe, 0x3e, 0x9c, 0x13, 0xf1, 0x3d, 0xe3, 0xbb, 0x58, 0xf4, 0x1b, 0x30, 0xf2, 0x11, 0x3a, 0xf3,
+	0x49, 0x3a, 0x76, 0x64, 0x8a, 0x50, 0xb2, 0x30, 0xe7, 0x13, 0xa0, 0xb3, 0x9d, 0x90, 0x2c, 0x88,
+	0x29, 0xf7, 0xde, 0xfb, 0xbd, 0xfc, 0xfd, 0xbf, 0xf7, 0x8e, 0x3c, 0x15, 0x09, 0x67, 0x71, 0x9e,
+	0x4f, 0x04, 0x8f, 0xb5, 0x40, 0xa9, 0x98, 0x2e, 0x62, 0xa9, 0x3e, 0x41, 0xc1, 0xca, 0x90, 0xe9,
+	0xaf, 0x34, 0x2f, 0x50, 0xa3, 0x73, 0x28, 0x12, 0x4e, 0x37, 0x31, 0xba, 0xc2, 0x68, 0x19, 0xf6,
+	0x1f, 0xa5, 0x98, 0x62, 0x05, 0x32, 0x73, 0xaa, 0x7b, 0xfa, 0x1e, 0x47, 0x95, 0xa1, 0x62, 0x49,
+	0xac, 0x80, 0x95, 0x61, 0x02, 0x3a, 0x0e, 0x19, 0x47, 0x21, 0x9b, 0xba, 0x6f, 0xa4, 0x39, 0x16,
+	0xc0, 0xf8, 0x44, 0x80, 0xd4, 0x46, 0xb0, 0x3e, 0xd5, 0x40, 0xf0, 0xa3, 0x45, 0x7a, 0x67, 0x2a,
+	0x3d, 0x6f, 0x94, 0x9c, 0x63, 0xd2, 0x53, 0x38, 0x2d, 0x38, 0x5c, 0xe4, 0x58, 0x68, 0xd7, 0x1e,
+	0xd8, 0xc3, 0x7b, 0xa3, 0xfd, 0xe5, 0xcc, 0x77, 0xae, 0xe2, 0x6c, 0x72, 0x12, 0x6c, 0x14, 0x83,
+	0x88, 0xd4, 0xd1, 0x3b, 0x2c, 0xb4, 0xf3, 0x9a, 0xec, 0x35, 0x35, 0x3e, 0x8e, 0xa5, 0x84, 0x89,
+	0x7b, 0xa7, 0xea, 0x3d, 0x58, 0xce, 0xfc, 0xc7, 0x5b, 0xbd, 0x4d, 0x3d, 0x88, 0x76, 0xeb, 0xc4,
+	0x69, 0x1d, 0x3b, 0xaf, 0xc8, 0x8e, 0xc6, 0xcf, 0x20, 0xdd, 0xd6, 0xc0, 0x1e, 0xf6, 0x8e, 0x0e,
+	0x68, 0xed, 0x8d, 0x1a, 0x6f, 0xb4, 0xf1, 0x46, 0x4f, 0x51, 0xc8, 0x51, 0xfb, 0x66, 0xe6, 0x5b,
+	0x51, 0x4d, 0x3b, 0xfb, 0xa4, 0xa3, 0x40, 0x5e, 0x42, 0xe1, 0xb6, 0x8d, 0x60, 0xd4, 0x44, 0x4e,
+	0x9f, 0x74, 0x0b, 0xe0, 0x20, 0x4a, 0x28, 0xdc, 0x9d, 0xaa, 0xb2, 0x8e, 0x9d, 0x8f, 0x64, 0x4f,
+	0x8b, 0x0c, 0x70, 0xaa, 0x2f, 0xc6, 0x20, 0xd2, 0xb1, 0x76, 0x3b, 0x95, 0x66, 0x9f, 0x9a, 0x19,
+	0x98, 0xfb, 0xa2, 0xcd, 0x2d, 0x95, 0x21, 0x7d, 0x53, 0x11, 0xa3, 0x27, 0x46, 0xf4, 0xaf, 0x99,
+	0xed, 0xfe, 0x20, 0xda, 0x6d, 0x12, 0x35, 0xed, 0xbc, 0x25, 0x0f, 0x56, 0x84, 0xf9, 0x55, 0x3a,
+	0xce, 0x72, 0xf7, 0xee, 0xc0, 0x1e, 0xb6, 0x47, 0x87, 0xcb, 0x99, 0xef, 0x6e, 0xff, 0xc9, 0x1a,
+	0x09, 0xa2, 0xfb, 0x4d, 0xee, 0x7c, 0x95, 0x3a, 0xe9, 0x7e, 0xbb, 0xf6, 0xad, 0xdf, 0xd7, 0xbe,
+	0x15, 0x84, 0xe4, 0xe1, 0xc6, 0xac, 0x22, 0x50, 0x39, 0x4a, 0x05, 0xc6, 0xa9, 0x82, 0x2f, 0x53,
+	0x90, 0x1c, 0xaa, 0x81, 0xb5, 0xa3, 0x75, 0x7c, 0x84, 0xa4, 0x75, 0xa6, 0x52, 0x67, 0x4c, 0xba,
+	0xeb, 0x11, 0x3f, 0xa3, 0xff, 0x5a, 0x34, 0xba, 0xa1, 0xd0, 0x0f, 0xff, 0x1b, 0x5d, 0x7d, 0xcc,
+	0xe8, 0xfd, 0xcd, 0xdc, 0xb3, 0x6f, 0xe7, 0x9e, 0xfd, 0x6b, 0xee, 0xd9, 0xdf, 0x17, 0x9e, 0x75,
+	0xbb, 0xf0, 0xac, 0x9f, 0x0b, 0xcf, 0xfa, 0x70, 0x9c, 0x0a, 0x3d, 0x9e, 0x26, 0x94, 0x63, 0xc6,
+	0x9a, 0xb5, 0x15, 0x09, 0x7f, 0x9e, 0x22, 0x2b, 0x5f, 0xb2, 0x0c, 0x2f, 0xa7, 0x13, 0x50, 0xe6,
+	0x99, 0x6c, 0x3c, 0x0f, 0x7d, 0x95, 0x83, 0x4a, 0x3a, 0xd5, 0xaa, 0xbe, 0xf8, 0x13, 0x00, 0x00,
+	0xff, 0xff, 0xb5, 0xaa, 0xe1, 0xd5, 0x48, 0x03, 0x00, 0x00,
 }
 
 // Reference imports to suppress errors if they are not otherwise used.
@@ -344,6 +354,11 @@ func (m *MsgTransferResponse) MarshalToSizedBuffer(dAtA []byte) (int, error) {
 	_ = i
 	var l int
 	_ = l
+	if m.Sequence != 0 {
+		i = encodeVarintTx(dAtA, i, uint64(m.Sequence))
+		i--
+		dAtA[i] = 0x8
+	}
 	return len(dAtA) - i, nil
 }
 
@@ -396,6 +411,9 @@ func (m *MsgTransferResponse) Size() (n int) {
 	}
 	var l int
 	_ = l
+	if m.Sequence != 0 {
+		n += 1 + sovTx(uint64(m.Sequence))
+	}
 	return n
 }
 
@@ -697,6 +715,25 @@ func (m *MsgTransferResponse) Unmarshal(dAtA []byte) error {
 			return fmt.Errorf("proto: MsgTransferResponse: illegal tag %d (wire type %d)", fieldNum, wire)
 		}
 		switch fieldNum {
+		case 1:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Sequence", wireType)
+			}
+			m.Sequence = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowTx
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.Sequence |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
 		default:
 			iNdEx = preIndex
 			skippy, err := skipTx(dAtA[iNdEx:])
diff --git a/proto/ibc/applications/transfer/v1/tx.proto b/proto/ibc/applications/transfer/v1/tx.proto
index 5befdf2fbc3..2ec1dd2ebcb 100644
--- a/proto/ibc/applications/transfer/v1/tx.proto
+++ b/proto/ibc/applications/transfer/v1/tx.proto
@@ -41,4 +41,7 @@ message MsgTransfer {
 }
 
 // MsgTransferResponse defines the Msg/Transfer response type.
-message MsgTransferResponse {}
+message MsgTransferResponse {
+  // sequence number of the transfer packet sent
+  uint64 sequence = 1;
+}