diff --git a/src/client/user_ifdhandler.c b/src/client/user_ifdhandler.c
index 188d3a6..a690503 100644
--- a/src/client/user_ifdhandler.c
+++ b/src/client/user_ifdhandler.c
@@ -206,9 +206,9 @@
 	return 0;
 }
 
-int frontend_append_script_env(struct bankd_client *bc, char **env, size_t max_env)
+int frontend_append_script_env(struct bankd_client *bc, char **env, int idx, size_t max_env)
 {
-	return 0;
+	return idx;
 }
 
 /***********************************************************************