diff --git a/fhem/FHEM/Color.pm b/fhem/FHEM/Color.pm
index 5001f4550..2381b6fde 100644
--- a/fhem/FHEM/Color.pm
+++ b/fhem/FHEM/Color.pm
@@ -148,7 +148,7 @@ rgb2hsv($$$) {
     $s = $c / $M;
   }
 
-  $v = $M/255;
+  $v = $M;
 
   return( $h,$s,$v );
 }