diff --git a/challenges/08-coding-interview-prep/data-structures.json b/challenges/08-coding-interview-prep/data-structures.json
index 651099d5fe8..80d6e735c9f 100644
--- a/challenges/08-coding-interview-prep/data-structures.json
+++ b/challenges/08-coding-interview-prep/data-structures.json
@@ -993,8 +993,8 @@
       ],
       "tests": [
         {
-          "text": "Your <code>Set</code> should only contains the values <code>1, 2, 3, Taco, Cat, Awesome</code>.",
-          "testString": "assert(function(){var test = checkSet(); return (test.size == 6) && test.has(1) && test.has(2) && test.has(3) && test.has('Taco') && test.has('Cat') && test.has('Awesome');}, 'Your <code>Set</code> should only contains the values <code>1, 2, 3, Taco, Cat, Awesome</code>.');"
+          "text": "Your <code>Set</code> should only contain the values <code>1, 2, 3, Taco, Cat, Awesome</code>.",
+          "testString": "assert(function(){var test = checkSet(); return (test.size == 6) && test.has(1) && test.has(2) && test.has(3) && test.has('Taco') && test.has('Cat') && test.has('Awesome');}, 'Your <code>Set</code> should only contain the values <code>1, 2, 3, Taco, Cat, Awesome</code>.');"
         }
       ],
       "releasedOn": "Feb 17, 2017",