--- a/testing/mochitest/tests/SimpleTest/SimpleTest.js
+++ b/testing/mochitest/tests/SimpleTest/SimpleTest.js
@@ -254,17 +254,17 @@ SimpleTest.setExpected();
 SimpleTest.ok = function (condition, name, diag) {
 
     var test = {'result': !!condition, 'name': name, 'diag': diag};
     if (SimpleTest.expected == 'fail') {
       if (!test.result) {
         SimpleTest.num_failed++;
         test.result = !test.result;
       }
-      var successInfo = {status:"PASS", expected:"PASS", message:"TEST-PASS"};
+      var successInfo = {status:"PASS", expected:"FAIL", message:"TEST-UNEXPECTED-PASS"};
       var failureInfo = {status:"FAIL", expected:"FAIL", message:"TEST-KNOWN-FAIL"};
     } else {
       var successInfo = {status:"PASS", expected:"PASS", message:"TEST-PASS"};
       var failureInfo = {status:"FAIL", expected:"PASS", message:"TEST-UNEXPECTED-FAIL"};
     }
     SimpleTest._logResult(test, successInfo, failureInfo);
     SimpleTest._tests.push(test);
 };