diff --git a/test/unit/runner.spec.js b/test/unit/runner.spec.js
index 79edfc47a1..692559f1ed 100644
--- a/test/unit/runner.spec.js
+++ b/test/unit/runner.spec.js
@@ -452,6 +452,13 @@ describe('Runner', function() {
         done();
       });
     });
+
+    // karma-mocha is inexplicably doing this with a Hook
+    it('should not throw an exception if something emits EVENT_TEST_END with a non-Test object', function() {
+      expect(function() {
+        runner.emit(EVENT_TEST_END, {});
+      }, 'not to throw');
+    });
   });
 
   describe('.runTest(fn)', function() {