diff --git a/seed/challenges/03-back-end-development-certification/automated-testing-and-debugging.json b/seed/challenges/03-back-end-development-certification/automated-testing-and-debugging.json
index a272a358df..fab459adc4 100644
--- a/seed/challenges/03-back-end-development-certification/automated-testing-and-debugging.json
+++ b/seed/challenges/03-back-end-development-certification/automated-testing-and-debugging.json
@@ -52,7 +52,7 @@
         "assert(code.match(/console\\.log\\(typeof[\\( ][\"'].*[\"']\\)?\\);/), 'message: You should <code>console.log</code> the <code>typeof</code> a string.');",
         "assert(code.match(/console\\.log\\(typeof[\\( ]\\d+\\.?\\d*\\)?\\);/), 'message: You should <code>console.log</code> the <code>typeof</code> a number.');",
         "assert(code.match(/console\\.log\\(typeof[\\( ]\\[\\]\\)?\\);/), 'message: You should <code>console.log</code> the <code>typeof</code> an array.');",
-        "assert(code.match(/console\\.log\\(typeof[\\( ]\\{\\}\\)?\\);/), 'message: You should <code>console.log</code> the <code>typeof</code> a object.');"
+        "assert(code.match(/console\\.log\\(typeof[\\( ]\\{\\}\\)?\\);/), 'message: You should <code>console.log</code> the <code>typeof</code> an object.');"
       ],
       "type": "waypoint",
       "challengeType": 1,
diff --git a/server/boot/challenge.js b/server/boot/challenge.js
index cd8d38c2d5..aa8938e6df 100644
--- a/server/boot/challenge.js
+++ b/server/boot/challenge.js
@@ -526,7 +526,7 @@ module.exports = function(app) {
   }
 
   function completedChallenge(req, res, next) {
-    req.checkBody('id', 'id must be a ObjectId').isMongoId();
+    req.checkBody('id', 'id must be an ObjectId').isMongoId();
     req.checkBody('name', 'name must be at least 3 characters')
       .isString()
       .isLength({ min: 3 });