--- a/security/manager/ssl/tests/mochitest/mixedcontent/test_bug383369.html
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/test_bug383369.html
@@ -55,17 +55,17 @@
             list.removeView(this);
             aDownload.whenSucceeded().then(() => {
               list.removeFinished();
               sendAsyncMessage("navigate", "bug383369step2.html");
             });
           },
         });
         sendAsyncMessage("navigate", "download.auto");
-      }).then(null, SpecialPowers.Cu.reportError);
+      }).then(null, Cu.reportError);
     });
     script.addMessageListener("navigate", function(url) {
       window.location = url;
     });
   }
 
   function afterNavigationTest() {}