diff --git a/x/bank/keeper/send.go b/x/bank/keeper/send.go
index 043471e05c..6aba1be430 100644
--- a/x/bank/keeper/send.go
+++ b/x/bank/keeper/send.go
@@ -58,10 +58,6 @@ func NewBaseSendKeeper(
 	}
 }
 
-func AddressToPrefixKey(addr sdk.AccAddress) []byte {
-	return []byte(addr.String() + types.AddressDenomDelimiter)
-}
-
 // GetParams returns the total set of bank parameters.
 func (k BaseSendKeeper) GetParams(ctx sdk.Context) (params types.Params) {
 	k.paramSpace.GetParamSet(ctx, &params)
diff --git a/x/bank/types/key.go b/x/bank/types/key.go
index 66dec0c4ec..a85dd983ab 100644
--- a/x/bank/types/key.go
+++ b/x/bank/types/key.go
@@ -26,9 +26,6 @@ var (
 	BalancesPrefix      = []byte{0x02}
 	SupplyKey           = []byte{0x00}
 	DenomMetadataPrefix = []byte{0x1}
-
-	// Contract: Address must not contain this character
-	AddressDenomDelimiter = ","
 )
 
 // DenomMetadataKey returns the denomination metadata key.