diff --git a/challenges/html5-and-css.json b/challenges/html5-and-css.json
index 8a833a05a4..3d0f52b42e 100644
--- a/challenges/html5-and-css.json
+++ b/challenges/html5-and-css.json
@@ -2151,7 +2151,7 @@
         "Set the first of your radio buttons and the first of your checkboxes to both be checked by default."
       ],
       "tests": [
-        "assert($('input[type=\"radio\"]').prop('checked'), 'Your first radio button on your form should be checked by default.');",
+        "assert($('input[type=\"radio\"]').prop('checked'), 'Your first radio button on your form should be checked by default.')",
         "assert($('input[type=\"checkbox\"]').prop('checked'), 'Your first checkbox on your form should be checked by default.')"
       ],
       "challengeSeed": [