diff --git a/test/spec/auctionmanager_spec.js b/test/spec/auctionmanager_spec.js
index 524b68e33f4..1517b5d69d8 100644
--- a/test/spec/auctionmanager_spec.js
+++ b/test/spec/auctionmanager_spec.js
@@ -785,7 +785,7 @@ describe('auctionmanager.js', function () {
         };
         makeRequestsStub.returns([bidRequest]);
 
-        myBid.mediaType = "video";
+        myBid.mediaType = 'video';
         spec.interpretResponse.returns(myBid);
         auction.callBids();