--- a/devtools/client/shared/telemetry.js
+++ b/devtools/client/shared/telemetry.js
@@ -37,26 +37,26 @@
  * You can view telemetry stats for large groups of Firefox users at
  * telemetry.mozilla.org.
  */
 
 "use strict";
 
 const TOOLS_OPENED_PREF = "devtools.telemetry.tools.opened.version";
 
-this.Telemetry = function () {
+function Telemetry() {
   // Bind pretty much all functions so that callers do not need to.
   this.toolOpened = this.toolOpened.bind(this);
   this.toolClosed = this.toolClosed.bind(this);
   this.log = this.log.bind(this);
   this.logOncePerBrowserVersion = this.logOncePerBrowserVersion.bind(this);
   this.destroy = this.destroy.bind(this);
 
   this._timers = new Map();
-};
+}
 
 module.exports = Telemetry;
 
 var Services = require("Services");
 
 Telemetry.prototype = {
   _histograms: {
     toolbox: {