diff --git a/content/vim.js b/content/vim.js
index 8e160529..64723026 100644
--- a/content/vim.js
+++ b/content/vim.js
@@ -903,7 +903,7 @@ const liberator = (function () //{{{
                 mainThread.processNextEvent(true);
         },
 
-        get windows()
+        getWindows: function()
         {
             var wm = Components.classes["@mozilla.org/appshell/window-mediator;1"]
                      .getService(Components.interfaces.nsIWindowMediator);