diff --git a/flipflop/library/common.php b/flipflop/library/common.php
index f47f78f7449128685d28388d9f87b59995c27906..7b9349954e9227b28414c2e48666060d6d450ec0 100644
--- a/flipflop/library/common.php
+++ b/flipflop/library/common.php
@@ -226,8 +226,8 @@ function theme_link_pages($args = '') {
 }
 
 // remove gallery css
-add_filter('gallery_style', create_function('$a', 'return "
-<div class=\'gallery\'>";'));
+add_filter('gallery_style', function($a) { return "
+<div class='gallery'>";});
 
 // Return page tree
 function theme_page_tree($this_page) {
@@ -325,4 +325,4 @@ function theme_is_subpage() {
 	else return false;
 }
 
-?>
\ No newline at end of file
+?>