diff --git a/test/underscore.html b/test/underscore.html
index 3f8c2b173..d2fef52c1 100644
--- a/test/underscore.html
+++ b/test/underscore.html
@@ -275,6 +275,9 @@
             'Numeric strings are numbers',
             'Number instances can be finite'
           ],
+          'isSet': [
+            'Died on test #9'
+          ],
           'findKey': [
             'called with context'
           ],