diff --git a/app/scripts/controllers/transactions/EtherscanRemoteTransactionSource.test.ts b/app/scripts/controllers/transactions/EtherscanRemoteTransactionSource.test.ts
index 2e7effd2c7bb..37ec4c234121 100644
--- a/app/scripts/controllers/transactions/EtherscanRemoteTransactionSource.test.ts
+++ b/app/scripts/controllers/transactions/EtherscanRemoteTransactionSource.test.ts
@@ -23,7 +23,7 @@ jest.mock('./etherscan', () => ({
 
 jest.mock('../../../../shared/modules/random-id');
 
-const ID_MOCK = 123;
+const ID_MOCK = "123";
 
 const ETHERSCAN_TRANSACTION_BASE_MOCK: EtherscanTransactionMetaBase = {
   blockNumber: '4535105',