--- a/cms/app-client/app/components/visu-langues.js	Wed Sep 28 15:58:18 2016 +0200
+++ b/cms/app-client/app/components/visu-langues.js	Wed Sep 28 17:24:02 2016 +0200
@@ -19,8 +19,8 @@
 
         d3.json(baseurl+"/stats/languages", function(languages) {
             var margin = { top: 30, right: 0, bottom: 0, left: 0 };
-            var width = $('#' + self.get('elementId')).width();
-            var height = $('#' + self.get('elementId')).height() - margin.top - margin.bottom;
+            var width = Ember.$('#' + self.get('elementId')).width();
+            var height = Ember.$('#' + self.get('elementId')).height() - margin.top - margin.bottom;
 
             var array = Object.keys(languages).map(function (key) { return languages[key]; });
             var oldMin = Math.min(...array),