diff --git a/test/bundler-integration/token-paymaster/oracle-aggregator-specs.ts b/test/bundler-integration/token-paymaster/oracle-aggregator-specs.ts
index a13ba7a..5bbd4ac 100644
--- a/test/bundler-integration/token-paymaster/oracle-aggregator-specs.ts
+++ b/test/bundler-integration/token-paymaster/oracle-aggregator-specs.ts
@@ -42,6 +42,9 @@ const DEFAULT_FEE_MARKUP = 1100000;
 
 const MOCK_FX: BigNumberish = "977100"; // matic to usdc approx
 
+const UserOperationEventTopic =
+  "0x49628fd1471006c1482da88028e9ce4dbb080b815c9b0344d39e5a8e6ec1419f";
+
 // export const encodePaymasterData = (
 //   feeToken = ethers.constants.AddressZero,
 //   exchangeRate: BigNumberish = ethers.constants.Zero,