diff --git a/mozilla/js/tests/js1_5/Expressions/regress-96526-delelem.js b/mozilla/js/tests/js1_5/Expressions/regress-96526-delelem.js
index a4cd1efbdaa..81df7e8d1c5 100644
--- a/mozilla/js/tests/js1_5/Expressions/regress-96526-delelem.js
+++ b/mozilla/js/tests/js1_5/Expressions/regress-96526-delelem.js
@@ -86,7 +86,7 @@ function f(j,k,a)
 
   status = inSection(5);
   actual = formatArray(a[2][j]);
-  expect = formatArray([3, undefined]);
+  expect = '[3, ,]';
   addThis();
 }