diff --git a/test/core/fixtures/transformation/spec.function-name/self-reference/expected.js b/test/core/fixtures/transformation/spec.function-name/self-reference/expected.js
index 57c45fda9d..900ff0debc 100644
--- a/test/core/fixtures/transformation/spec.function-name/self-reference/expected.js
+++ b/test/core/fixtures/transformation/spec.function-name/self-reference/expected.js
@@ -6,7 +6,7 @@ var f = (function (_f) {
   }
 
   f.toString = function () {
-    return f.toString();
+    return _f.toString();
   };
 
   return f;