diff --git a/test/function/consistent-renaming-f/main.js b/test/function/consistent-renaming-f/main.js
index d1e53f9..c9015d1 100644
--- a/test/function/consistent-renaming-f/main.js
+++ b/test/function/consistent-renaming-f/main.js
@@ -3,7 +3,9 @@ import bar from './bar';
 export default function foo () {}
 
 foo.prototype.a = function ( foo ) {
+	var foo = foo;
+	foo();
 	return bar();
 };
 
-assert.equal( new foo().a(), 'consistent' );
+assert.equal( new foo().a(function () {}), 'consistent' );