diff --git a/omega/js/omega-mediaqueries.js b/omega/js/omega-mediaqueries.js
index 05d0cdd..06b34a5 100644
--- a/omega/js/omega-mediaqueries.js
+++ b/omega/js/omega-mediaqueries.js
@@ -57,7 +57,7 @@ Drupal.omega = Drupal.omega || {};
         var dummy = $('<div id="omega-check-query"></div>').prependTo('body');
 
         dummy.append('<style media="all">#omega-check-query { position: relative; z-index: -1; }</style>');
-        dummy.append('<!--[if (lt IE 9)&(!IEMobile)]><style media="all">#omega-check-query { z-index: 100; }</style><![endif]-->');
+        dummy.append('<!--[if (lt IE 9)&(!IEMobile)]><style media="all">#omega-check-query { z-index: 100 !important; }</style><![endif]-->');
 
         output = parseInt(dummy.css('z-index')) == 100;
 
@@ -96,7 +96,7 @@ Drupal.omega = Drupal.omega || {};
         var dummy = $('<div id="omega-media-query-dummy"></div>').prependTo('body');
 
         dummy.append('<style media="all">#omega-media-query-dummy { position: relative; z-index: -1; }</style>');
-        dummy.append('<!--[if (lt IE 9)&(!IEMobile)]><style media="all">#omega-media-query-dummy { z-index: ' + primary + '; }</style><![endif]-->');
+        dummy.append('<!--[if (lt IE 9)&(!IEMobile)]><style media="all">#omega-media-query-dummy { z-index: ' + primary + ' !important; }</style><![endif]-->');
 
         for (var i in Drupal.settings.omega.layouts.order) {
           dummy.append('<style media="' + Drupal.settings.omega.layouts.queries[Drupal.settings.omega.layouts.order[i]] + '">#omega-media-query-dummy { z-index: ' + i + '; }</style>');