diff --git a/challenges/basic-javascript.json b/challenges/basic-javascript.json
index 5d7ca67df7..678ca0d700 100644
--- a/challenges/basic-javascript.json
+++ b/challenges/basic-javascript.json
@@ -450,7 +450,7 @@
         "Let's now go create a nested array called <code>myArray</code>."
       ],
       "tests":[
-        "assert((function(){if(typeof(myArray) !== 'undefined' && typeof(myArray) === 'object' && typeof(myArray[0]) !== 'undefined' && typeof(myArray[0]) === 'object' && editor.getValue().match(/\\[(.*)?\\[/g).length >= 1 && editor.getValue().match(/\\](.*)?\\]/g).length >= 1){return(true);}else{return(false);}})(), 'myArray should contain at least one array');"
+        "assert((function(){if(typeof(myArray) !== \"undefined\" && typeof(myArray) === \"object\" && typeof(myArray[0]) !== \"undefined\" && typeof(myArray[0]) === \"object\" && editor.getValue().match(/\\[\\s?\\[/g).length >= 1 && editor.getValue().match(/\\]\\s?\\]/g).length >= 1){return(true);}else{return(false);}})(), 'myArray should contain at least one array');"
       ],
       "challengeSeed":[
         "var ourArray = [[\"the universe\", \"everything\"], 42];",