diff --git a/include/tw/generateuid.inc.php b/include/tw/generateuid.inc.php
index fe1a0bfad..b946119e6 100644
--- a/include/tw/generateuid.inc.php
+++ b/include/tw/generateuid.inc.php
@@ -74,6 +74,7 @@ function generateMitarbeiterUID($vorname, $nachname, $lektor)
 		$uid .= mb_substr($vorname,0,$vn);
 		
 		$uid = mb_str_replace(' ','',$uid);
+		$uid = mb_str_replace('-','',$uid);
 
 		if(!$bn->uid_exists($uid) && !in_array($uid, $reserviert))
 			if($bn->errormsg=='')