diff --git a/fhem/FHEM/10_CUL_HM.pm b/fhem/FHEM/10_CUL_HM.pm
index cd6d20318..a86146b9a 100755
--- a/fhem/FHEM/10_CUL_HM.pm
+++ b/fhem/FHEM/10_CUL_HM.pm
@@ -3230,7 +3230,7 @@ sub CUL_HM_responseSetup($$) {#store all we need to handle the response
       CUL_HM_qStateUpdatIfEnab($dst);
     }
 	if ($mTp eq "11" && $p =~ m/02..(..)....(....)/){#lvl ne 0 and timer on
-	  $hash->{helper}{tmdOn} = $2 if ($1 ne "00" && $2 != m/(0000|FFFF)/);
+	  $hash->{helper}{tmdOn} = $2 if ($1 ne "00" && $2 !~ m/(0000|FFFF)/);
 	}
   
 	CUL_HM_respWaitSu ($hash,"cmd:$cmd","mNo:$mNo","reSent:1");