diff --git a/mozilla/js/tests/ecma_3/String/regress-304376.js b/mozilla/js/tests/ecma_3/String/regress-304376.js
index 1decac5f92f..c1a2e8cff9e 100755
--- a/mozilla/js/tests/ecma_3/String/regress-304376.js
+++ b/mozilla/js/tests/ecma_3/String/regress-304376.js
@@ -44,6 +44,8 @@ printBugNumber (bug);
 printStatus (summary);
 
 expect = 'String';
+
+var saveString = String;
   
 String = Array;
 
@@ -52,4 +54,6 @@ actual = (new String()).constructor.name;
 // see if we can crash...
 "".join();
 
+String = saveString;
+
 reportCompare(expect, actual, summary);