diff --git a/challenges/01-responsive-web-design/responsive-web-design.json b/challenges/01-responsive-web-design/responsive-web-design.json
index 616aacfce..6dd38b419 100644
--- a/challenges/01-responsive-web-design/responsive-web-design.json
+++ b/challenges/01-responsive-web-design/responsive-web-design.json
@@ -25,7 +25,7 @@
         },
         {
           "text": "Declare a <code>@media</code> query for devices with a <code>height</code> less than or equal to 800px.",
-          "testString": "assert(code.match(/@media\\s?\\(max-height:\\s*?800px\\)/g), 'Declare a <code>@media</code> query for devices with a <code>height</code> less than or equal to 800px.');"
+          "testString": "assert(code.match(/@media\\s*?\\(\\s*?max-height\\s*?:\\s*?800px\\s*?\\)/g), 'Declare a <code>@media</code> query for devices with a <code>height</code> less than or equal to 800px.');"
         }
       ],
       "releasedOn": "Feb 17, 2017",