diff --git a/docs/scripts/generate_web.php b/docs/scripts/generate_web.php
index 1f29bd3e..49edfb3e 100755
--- a/docs/scripts/generate_web.php
+++ b/docs/scripts/generate_web.php
@@ -21,6 +21,7 @@
   $Id$
 */
 
+ini_set('pcre.backtrack_limit', 150000); // Default is 100000, available since PHP 5.2.0 
 set_time_limit(0);
 
 $search = array(