diff --git a/.eslintrc.es5.json b/.eslintrc.es5.json
index 9587740ac7..82dfbc9703 100644
--- a/.eslintrc.es5.json
+++ b/.eslintrc.es5.json
@@ -20,7 +20,6 @@
     "no-restricted-syntax": 0,
     "no-useless-concat": 0,
     "no-nested-ternary": 0,
-    "new-cap": 0,
     "no-continue": 0,
     "no-new": 0,
     "no-redeclare": 0,
diff --git a/assets/js/src/form_editor/form_editor.js b/assets/js/src/form_editor/form_editor.js
index d55291cd97..1970bd1ef3 100644
--- a/assets/js/src/form_editor/form_editor.js
+++ b/assets/js/src/form_editor/form_editor.js
@@ -143,9 +143,9 @@ Observable = (function () {
     return name.underscore().split('_').join(':');
   }
 
-  function getWrapper(handler, klass) {
+  function getWrapper(handler, Klass) {
     return function (event) {
-      return handler.call(new klass(this), event, event.memo);
+      return handler.call(new Klass(this), event, event.memo);
     };
   }
 
@@ -159,9 +159,9 @@ Observable = (function () {
     });
   }
 
-  function onDomLoad(selector, klass) {
+  function onDomLoad(selector, Klass) {
     window.$$(selector).each(function (element) {
-      new klass(element).onDomLoaded();
+      new Klass(element).onDomLoaded();
     });
   }
   return {