diff --git a/fhem/FHEM/40_RFXCOM.pm b/fhem/FHEM/40_RFXCOM.pm
index b64bbe4f4..0e59bc9b9 100755
--- a/fhem/FHEM/40_RFXCOM.pm
+++ b/fhem/FHEM/40_RFXCOM.pm
@@ -163,7 +163,6 @@ RFXCOM_Set($@)
   my $name=$a[0];
   my $reading= $a[1];
   $msg="$name => No Set function ($reading) implemented";
-    Log 1,$msg;
     return $msg;
 }
 
diff --git a/fhem/FHEM/70_USBWX.pm b/fhem/FHEM/70_USBWX.pm
index db9b7f55e..6285eb3ad 100644
--- a/fhem/FHEM/70_USBWX.pm
+++ b/fhem/FHEM/70_USBWX.pm
@@ -321,7 +321,6 @@ my $msg;
 my $name=$a[0];
 my $reading= $a[1];
 $msg="$name => No Set function ($reading) implemented";
-Log 1,$msg;
 return $msg;
 }