diff --git a/vendor/assets/javascripts/facebox.js b/vendor/assets/javascripts/facebox.js
index 7d0e39d8f..763aa5a8d 100644
--- a/vendor/assets/javascripts/facebox.js
+++ b/vendor/assets/javascripts/facebox.js
@@ -107,7 +107,7 @@
 
       $('#facebox').show().css({
         top:	getPageScroll()[1] + (getPageHeight() / 10),
-        left:	$(window).width() / 2 - ($('#facebox .popup').outerWidth() / 2)
+        left:	$(window).width() / 2 - ($('#facebox .popup').width() / 2)
       })
 
       $(document).bind('keydown.facebox', function(e) {
@@ -122,7 +122,7 @@
       if (klass) $('#facebox .content').addClass(klass)
       $('#facebox .content').empty().append(data)
       $('#facebox .popup').children().fadeIn('normal')
-      $('#facebox').css('left', $(window).width() / 2 - ($('#facebox .popup').outerWidth() / 2))
+      $('#facebox').css('left', $(window).width() / 2 - ($('#facebox .popup').width() / 2))
       $(document).trigger('reveal.facebox').trigger('afterReveal.facebox')
     },