diff --git a/cis/private/profile/zeitsperre_resturlaub.php b/cis/private/profile/zeitsperre_resturlaub.php
index 04615ab66..351ebc29d 100644
--- a/cis/private/profile/zeitsperre_resturlaub.php
+++ b/cis/private/profile/zeitsperre_resturlaub.php
@@ -350,6 +350,7 @@ function showHideStudeDropDown()
 $zeitsaldo = "";
 if($addoncasetime)
 {
+	require_once('../../../addons/casetime/config.inc.php');
 	require_once('../../../addons/casetime/include/functions.inc.php');
 	$zeitsaldo = getCaseTimeZeitsaldo($uid);
 	$zeitsaldo = "Aktueller Zeitsaldo: ". $zeitsaldo . " (".formatZeitsaldo($zeitsaldo).")";