diff --git a/test/mjsunit/regress/regress-1229.js b/test/mjsunit/regress/regress-1229.js
index e16d278..c0dcba9 100644
--- a/test/mjsunit/regress/regress-1229.js
+++ b/test/mjsunit/regress/regress-1229.js
@@ -35,10 +35,10 @@
   assertEquals(3, z);
 }
 
-var bound_arg = [1];
+var foob = foo.bind({}, 1);
 
 function f(y, z) {
-  return %NewObjectFromBound(foo, bound_arg);
+  return %NewObjectFromBound(foob);
 }
 
 // Check that %NewObjectFromBound looks at correct frame for inlined function.