diff --git a/packages/api/amplify_api_android/android/src/main/kotlin/com/amazonaws/amplify/amplify_api/auth/FlutterAuthProvider.kt b/packages/api/amplify_api_android/android/src/main/kotlin/com/amazonaws/amplify/amplify_api/auth/FlutterAuthProvider.kt
index f039c6a4f04..500b1b846ab 100644
--- a/packages/api/amplify_api_android/android/src/main/kotlin/com/amazonaws/amplify/amplify_api/auth/FlutterAuthProvider.kt
+++ b/packages/api/amplify_api_android/android/src/main/kotlin/com/amazonaws/amplify/amplify_api/auth/FlutterAuthProvider.kt
@@ -93,7 +93,7 @@ class FlutterAuthProviders(
                     }
 
                     override fun error(
-                        errorCode: String?,
+                        errorCode: String,
                         errorMessage: String?,
                         errorDetails: Any?
                     ) {
@@ -152,4 +152,4 @@ class FlutterAuthProvider(
 
     override fun getLatestAuthToken(): String =
         provider.getToken(type) ?: throw noTokenAvailable(type)
-}
\ No newline at end of file
+}