diff --git a/inc/functions.php b/inc/functions.php
index 74ab96e9..848d9204 100644
--- a/inc/functions.php
+++ b/inc/functions.php
@@ -1415,7 +1415,10 @@ function wordfilters(&$body) {
 
 	foreach ($config['wordfilters'] as $filter) {
 		if (isset($filter[2]) && $filter[2]) {
-			$body = preg_replace($filter[0], $filter[1], $body);
+			if (is_callable($filter[1]))
+				$body = preg_replace_callback($filter[0], $filter[1], $body);
+			else
+				$body = preg_replace($filter[0], $filter[1], $body);
 		} else {
 			$body = str_ireplace($filter[0], $filter[1], $body);
 		}