--- a/cms/app-client/app/models/document.js	Mon Jul 04 12:42:57 2016 +0200
+++ b/cms/app-client/app/models/document.js	Mon Jul 04 16:18:19 2016 +0200
@@ -35,7 +35,7 @@
         Object.keys(this.get('mediaArray')).forEach(function(key) {
             if (!duration && self.get('mediaArray')[key].extent_ms) {
                 duration = self.get('mediaArray')[key].extent_ms;
-            };
+            }
         });
         return duration / 1000;
     })