diff --git a/dom/wifi/WifiWorker.js b/dom/wifi/WifiWorker.js
index 2f7fe5bf6a9..f0dfbd2c37a 100644
--- a/dom/wifi/WifiWorker.js
+++ b/dom/wifi/WifiWorker.js
@@ -2870,7 +2870,7 @@ WifiWorker.prototype = {
           self._stateRequests[0].callback.call(self, self._stateRequests[0].enabled);
         } else {
           WifiManager.setWifiEnabled(self._stateRequests[0].enabled,
-                                     self._setWifiEnabledCallback.bind(this));
+                                     self._setWifiEnabledCallback.bind(self));
         }
         timer = null;
       }, 1000, Ci.nsITimer.TYPE_ONE_SHOT);