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diff --git a/js/src/tests/test262/ch11/11.4/11.4.1/11.4.1-4.a-5.js b/js/src/tests/test262/ch11/11.4/11.4.1/11.4.1-4.a-5.js
new file mode 100644
index 000000000..0585bb3c4
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+++ b/js/src/tests/test262/ch11/11.4/11.4.1/11.4.1-4.a-5.js
@@ -0,0 +1,28 @@
+/// Copyright (c) 2012 Ecma International.  All rights reserved. 
+/// Ecma International makes this code available under the terms and conditions set
+/// forth on http://hg.ecmascript.org/tests/test262/raw-file/tip/LICENSE (the 
+/// "Use Terms").   Any redistribution of this code must retain the above 
+/// copyright and this notice and otherwise comply with the Use Terms.
+/**
+ * This test is actually testing the [[Delete]] internal method (8.12.8). Since the
+ * language provides no way to directly exercise [[Delete]], the tests are placed here.
+ *
+ * @path ch11/11.4/11.4.1/11.4.1-4.a-5.js
+ * @description delete operator returns false when deleting the environment object inside 'with'
+ */
+
+
+function testcase() {
+  var o = new Object();
+  o.x = 1;
+  var d;
+  with(o)
+  {
+    d = delete o;
+  }
+  if (d === false && typeof(o) === 'object' && o.x === 1) {
+    return true;
+  }
+  return false;
+ }
+runTestCase(testcase);