--- a/browser/base/content/sanitize.js
+++ b/browser/base/content/sanitize.js
@@ -23,17 +23,17 @@ XPCOMUtils.defineLazyModuleGetter(this, 
                                   "resource://gre/modules/TelemetryStopwatch.jsm");
 XPCOMUtils.defineLazyModuleGetter(this, "console",
                                   "resource://gre/modules/Console.jsm");
 XPCOMUtils.defineLazyModuleGetter(this, "Preferences",
                                   "resource://gre/modules/Preferences.jsm");
 XPCOMUtils.defineLazyModuleGetter(this, "setTimeout",
                                   "resource://gre/modules/Timer.jsm");
 
-var {Cc: classes, Ci: interfaces} = Components;
+var {classes: Cc, interfaces: Ci} = Components;
 
 /**
  * A number of iterations after which to yield time back
  * to the system.
  */
 const YIELD_PERIOD = 10;
 
 function Sanitizer() {