diff --git a/bigbluebutton-html5/imports/utils/stats.js b/bigbluebutton-html5/imports/utils/stats.js
index b1d121912cda12a7e8f9e5ec955b72fe5a1c92d6..1eca5e5cc448d77b07260b0af09ec3409b765bfc 100644
--- a/bigbluebutton-html5/imports/utils/stats.js
+++ b/bigbluebutton-html5/imports/utils/stats.js
@@ -1,7 +1,7 @@
 import logger from '/imports/startup/client/logger';
 
-STATS_LENGTH = 5;
-STATS_INTERVAL = 2000;
+const STATS_LENGTH = 5;
+const STATS_INTERVAL = 2000;
 
 const stop = callback => {
   logger.info(