diff --git a/platform/firefox/vapi-background.js b/platform/firefox/vapi-background.js
index dbbaeca..2556688 100644
--- a/platform/firefox/vapi-background.js
+++ b/platform/firefox/vapi-background.js
@@ -30,8 +30,7 @@
 /******************************************************************************/
 
 const {classes: Cc, interfaces: Ci, utils: Cu} = Components;
-
-Cu.import('resource://gre/modules/Services.jsm');
+const {Services} = Cu.import('resource://gre/modules/Services.jsm', null);
 
 /******************************************************************************/