diff --git a/UI/Handlebars/Helpers/Html.js b/UI/Handlebars/Helpers/Html.js
index 9265515ad..e2c0572fa 100644
--- a/UI/Handlebars/Helpers/Html.js
+++ b/UI/Handlebars/Helpers/Html.js
@@ -5,6 +5,6 @@ define(
         'handlebars'
     ], function (Handlebars) {
         Handlebars.registerHelper('defaultImg', function () {
-            return new Handlebars.SafeString('onerror="this.src="/content/images/poster-dark.jpg";"');
+            return new Handlebars.SafeString('onerror=this.src=\'/content/images/poster-dark.jpg\';');
         });
     });