diff --git a/yarn-project/sequencer-client/src/sequencer/sequencer.test.ts b/yarn-project/sequencer-client/src/sequencer/sequencer.test.ts
index 1f1c76cc2acb..dc69b5f1b271 100644
--- a/yarn-project/sequencer-client/src/sequencer/sequencer.test.ts
+++ b/yarn-project/sequencer-client/src/sequencer/sequencer.test.ts
@@ -70,6 +70,7 @@ describe('sequencer', () => {
 
     l1ToL2MessageSource = mock<L1ToL2MessageSource>({
       getPendingL1ToL2Messages: () => Promise.resolve(Array(NUMBER_OF_L1_L2_MESSAGES_PER_ROLLUP).fill(Fr.ZERO)),
+      getBlockNumber: () => Promise.resolve(lastBlockNumber),
     });
 
     sequencer = new TestSubject(
diff --git a/yarn-project/world-state/src/world-state-db/merkle_trees.ts b/yarn-project/world-state/src/world-state-db/merkle_trees.ts
index b335a0eb947d..1661b5a4ad77 100644
--- a/yarn-project/world-state/src/world-state-db/merkle_trees.ts
+++ b/yarn-project/world-state/src/world-state-db/merkle_trees.ts
@@ -28,7 +28,7 @@ import {
   loadTree,
   newTree,
 } from '@aztec/merkle-tree';
-import { L2Block, MerkleTreeId, SiblingPath, merkleTreeIds } from '@aztec/types';
+import { L2Block, MerkleTreeId, SiblingPath } from '@aztec/types';
 
 import { default as levelup } from 'levelup';