diff --git a/wp-admin/admin.php b/wp-admin/admin.php
index 26cce2725c..c84d418f61 100644
--- a/wp-admin/admin.php
+++ b/wp-admin/admin.php
@@ -53,7 +53,7 @@ if (isset($plugin_page)) {
 			wp_die(__('Invalid plugin page'));
 		}
 
-		if (! file_exists(ABSPATH . PLUGINDIR . "/$plugin_page"))
+		if (! ( file_exists(ABSPATH . PLUGINDIR . "/$plugin_page") && is_file( ABSPATH . PLUGINDIR . "/$plugin_page") ) )
 			wp_die(sprintf(__('Cannot load %s.'), htmlentities($plugin_page)));
 
 		do_action('load-' . $plugin_page);