diff --git a/library/includes/bbcode.php b/library/includes/bbcode.php
index e5e49ab14..b875a8f27 100644
--- a/library/includes/bbcode.php
+++ b/library/includes/bbcode.php
@@ -529,7 +529,7 @@ class bbcode
         global $bb_cfg;
 
         $text = " $text ";
-        $text = $this->clean_up($text);
+        $text = static::clean_up($text);
         $text = $this->spam_filter($text);
 
         // Tag parse