diff --git a/phpgwapi/inc/common_functions.inc.php b/phpgwapi/inc/common_functions.inc.php
index 5177275fc7..408cf9e6ca 100755
--- a/phpgwapi/inc/common_functions.inc.php
+++ b/phpgwapi/inc/common_functions.inc.php
@@ -1439,7 +1439,7 @@ function try_lang($key,$vars=null)
 function __autoload($class)
 {
 	// fixing warnings generated by php 5.3.8 is_a($obj) trying to autoload huge strings
-	if (strlen($class) > 40) return;
+	if (strlen($class) > 64) return;
 
 	$components = explode('_',$class);
 	$app = array_shift($components);