diff --git a/public/react/src/modules/courses/exercise/Exercisestatisticalresult.js b/public/react/src/modules/courses/exercise/Exercisestatisticalresult.js
index fb03835f6..6fa082f59 100644
--- a/public/react/src/modules/courses/exercise/Exercisestatisticalresult.js
+++ b/public/react/src/modules/courses/exercise/Exercisestatisticalresult.js
@@ -11,6 +11,7 @@ import '../css/busyWork.css';
 import '../poll/pollStyle.css';
 
 const CheckboxGroup = Checkbox.Group;
+const $ = window.$
 function createMarkup(value) { return {__html:value} };
 class Exercisestatisticalresult extends Component {