diff --git a/yarn-project/circuits.js/src/structs/rollup/__snapshots__/root_rollup.test.ts.snap b/yarn-project/circuits.js/src/structs/rollup/__snapshots__/root_rollup.test.ts.snap
index 5e5e74d9959b..fb1f9fbd6645 100644
--- a/yarn-project/circuits.js/src/structs/rollup/__snapshots__/root_rollup.test.ts.snap
+++ b/yarn-project/circuits.js/src/structs/rollup/__snapshots__/root_rollup.test.ts.snap
@@ -168,6 +168,15 @@ sibling_path: [ 0x1120 0x1121 0x1122 0x1123 0x1124 0x1125 0x1126 0x1127 ]
  ]
 new_historic_private_data_tree_roots: [ 0x2000 0x2001 0x2002 0x2003 0x2004 0x2005 0x2006 0x2007 ]
 new_historic_contract_tree_roots: [ 0x2100 0x2101 0x2102 0x2103 0x2104 0x2105 0x2106 0x2107 ]
+new_l1_to_l2_messages: [ 0x2100 0x2101 0x2102 0x2103 0x2104 0x2105 0x2106 0x2107 0x2100 0x2101 0x2102 0x2103 0x2104 0x2105 0x2106 0x2107 ]
+new_l1_to_l2_message_tree_root_sibling_path: [ 0x2100 0x2101 0x2102 0x2103 ]
+new_historic_l1_to_l2_message_roots_tree_sibling_path: [ 0x2104 0x2105 0x2106 0x2107 0x2108 0x2109 0x210a 0x210b ]
+start_l1_to_l2_message_tree_snapshot: root: 0x210c
+next_available_leaf_index: 0
+
+start_historic_tree_l1_to_l2_message_tree_roots_snapshot: root: 0x210d00000000
+next_available_leaf_index: 0
+
 "
 `;
 
@@ -219,6 +228,19 @@ next_available_leaf_index: 2816
 end_tree_of_historic_contract_tree_roots_snapshot: root: 0xc00
 next_available_leaf_index: 3072
 
+start_l1_to_l2_messages_tree_snapshot: root: 0xd00
+next_available_leaf_index: 3328
+
+end_l1_tol2_messages_tree_snapshot: root: 0xe00
+next_available_leaf_index: 3584
+
+start_tree_of_historic_l1_to_l2_messages_tree_roots_snapshot: root: 0xf00
+next_available_leaf_index: 3840
+
+end_tree_of_historic_l1_tol2_messages_tree_roots_snapshot: root: 0x1000
+next_available_leaf_index: 4096
+
 calldata_hash: [ 0x1 0x2 ]
+l1_to_l2_messages_hash: [ 0x3 0x4 ]
 "
 `;
diff --git a/yarn-project/sequencer-client/src/sequencer/sequencer.test.ts b/yarn-project/sequencer-client/src/sequencer/sequencer.test.ts
index 97c91917e8a6..f0e3c8cd53e1 100644
--- a/yarn-project/sequencer-client/src/sequencer/sequencer.test.ts
+++ b/yarn-project/sequencer-client/src/sequencer/sequencer.test.ts
@@ -1,4 +1,4 @@
-import { makeEmptyProof } from '@aztec/circuits.js';
+import { NUMBER_OF_L1_L2_MESSAGES_PER_ROLLUP, makeEmptyProof } from '@aztec/circuits.js';
 import { P2P, P2PClientState } from '@aztec/p2p';
 import { L2Block, PrivateTx, Tx, UnverifiedData } from '@aztec/types';
 import { MerkleTreeId, MerkleTreeOperations, WorldStateRunningState, WorldStateSynchroniser } from '@aztec/world-state';
@@ -64,6 +64,8 @@ describe('sequencer', () => {
     expect(blockBuilder.buildL2Block).toHaveBeenCalledWith(
       lastBlockNumber + 1,
       expectedTxHashes.map(hash => expect.objectContaining({ hash })),
+      // TODO: longer term solution to this
+      Array(NUMBER_OF_L1_L2_MESSAGES_PER_ROLLUP).fill(0),
     );
     expect(publisher.processL2Block).toHaveBeenCalledWith(block);
     expect(publisher.processUnverifiedData).toHaveBeenCalledWith(lastBlockNumber + 1, expectedUnverifiedData);
@@ -100,6 +102,8 @@ describe('sequencer', () => {
     expect(blockBuilder.buildL2Block).toHaveBeenCalledWith(
       lastBlockNumber + 1,
       expectedTxHashes.map(hash => expect.objectContaining({ hash })),
+      // TODO: longer term solution to this
+      Array(NUMBER_OF_L1_L2_MESSAGES_PER_ROLLUP).fill(0),
     );
     expect(publisher.processL2Block).toHaveBeenCalledWith(block);
     expect(publisher.processUnverifiedData).toHaveBeenCalledWith(lastBlockNumber + 1, expectedUnverifiedData);