diff --git a/challenges/basic-javascript.json b/challenges/basic-javascript.json
index ce7ec4949e..e1fd9b08eb 100644
--- a/challenges/basic-javascript.json
+++ b/challenges/basic-javascript.json
@@ -336,7 +336,7 @@
         "// Only change code above this line.",
         "// We use this function to show you the value of your variable in your output box.",
         "// You'll learn about functions soon.",
-        "(function(z){return('product='+z);})(product)"
+        "(function(z){return('product='+z);})(product);"
       ],
       "type": "waypoint",
       "challengeType": 1