diff --git a/seed/challenges/01-front-end-development-certification/html5-and-css.json b/seed/challenges/01-front-end-development-certification/html5-and-css.json
index 0ddbf5854bd..158b4f73886 100644
--- a/seed/challenges/01-front-end-development-certification/html5-and-css.json
+++ b/seed/challenges/01-front-end-development-certification/html5-and-css.json
@@ -1494,7 +1494,7 @@
       ],
       "tests": [
         "assert(parseInt($(\"img\").css(\"border-top-left-radius\")) > 48, 'message: Your image should have a border radius of <code>50&#37;</code>&#44; making it perfectly circular.');",
-        "assert(code.match(/50%/g), 'message: Be sure to use a percentage instead of a pixel value.');"
+        "assert(code.match(/50%/g), 'message: Be sure to use a percentage value of <code>50&#37;</code>.');"
       ],
       "type": "waypoint",
       "challengeType": 0,