diff --git a/packages/integration-tests/src/playbook/scenarios/withdrawal/withdrawETH.ts b/packages/integration-tests/src/playbook/scenarios/withdrawal/withdrawETH.ts
index 507c03eb34..94707a22c8 100644
--- a/packages/integration-tests/src/playbook/scenarios/withdrawal/withdrawETH.ts
+++ b/packages/integration-tests/src/playbook/scenarios/withdrawal/withdrawETH.ts
@@ -6,7 +6,7 @@ import { localConfig } from "../../../config";
 import { Buffer, CustomValue, Logger } from "../../../entities";
 import { Helper } from "../../../helper";
 
-export const withdrawETH = async function (sum = CustomValue.txSumEth) {
+export const withdrawETH = async function (sum = CustomValue.txSumEth.toString()) {
   const helper = new Helper();
   const syncProvider = new zksync.Provider(localConfig.L2Network);
   const ethProvider = ethers.getDefaultProvider(localConfig.L1Network);