diff --git a/mozilla/js/tests/jsDriver.pl b/mozilla/js/tests/jsDriver.pl
index b117c4ecb3b..43dd42aba3b 100755
--- a/mozilla/js/tests/jsDriver.pl
+++ b/mozilla/js/tests/jsDriver.pl
@@ -151,6 +151,9 @@ sub execute_tests {
     my $file_param = " -f ";
     my ($last_suite, $last_test_dir);
 
+    # Don't run any shell.js files as tests; they are only utility files
+    @test_list = grep (!/shell\.js$/, @test_list);
+
     &status ("Executing " . ($#test_list + 1) . " test(s).");
 
     foreach $test (@test_list) {