diff --git a/fhem/FHEM/98_autocreate.pm b/fhem/FHEM/98_autocreate.pm
index 98df66a79..7db0a7abc 100644
--- a/fhem/FHEM/98_autocreate.pm
+++ b/fhem/FHEM/98_autocreate.pm
@@ -494,7 +494,7 @@ my @usbtable = (
 
     { NAME      => "ZWDongle",
       matchList => ["cu.PL2303-0000(.*)", "cu.usbmodem(.*)",
-                    "ttyUSB(.*)", "ttyACM(.*)", "serial(.*)", "ttyAMA(.*)" ],
+                    "ttyUSB(.+)", "ttyACM(.+)", "serial(.+)", "ttyAMA(.+)" ],
       DeviceName=> "DEVICE\@115200",
       request   => pack("H*", "01030020dc06"),   # GetStatus +ACK
       response  => "^\x06.*",