diff --git a/jquery.leanModal.js b/jquery.leanModal.js
index facf07e..f5d68bf 100644
--- a/jquery.leanModal.js
+++ b/jquery.leanModal.js
@@ -32,8 +32,8 @@
                      close_modal(modal_id);                    
                 });
                          	
-              	var modal_height = $(modal_id).outerHeight();
-        	  	var modal_width = $(modal_id).outerWidth();
+              	var modal_height = $(modal_id).outerHeight(false);
+        	  	var modal_width = $(modal_id).outerWidth(false);
 
         		$('#lean_overlay').css({ 'display' : 'block', opacity : 0 });