diff --git a/packages/permissionless/utils/index.ts b/packages/permissionless/utils/index.ts
index c3ebe9fe..6e044012 100644
--- a/packages/permissionless/utils/index.ts
+++ b/packages/permissionless/utils/index.ts
@@ -9,7 +9,7 @@ import {
     type GetUserOperationHashParams,
     getUserOperationHash
 } from "./getUserOperationHash.js"
-import { isSmartAccountDeployed } from "./isSmartAccountDeployed"
+import { isSmartAccountDeployed } from "./isSmartAccountDeployed.js"
 import {
     AccountOrClientNotFoundError,
     type SignUserOperationHashWithECDSAParams,