diff --git a/FHEM/31_HUEDevice.pm b/FHEM/31_HUEDevice.pm
index 62338b682..91744a520 100644
--- a/FHEM/31_HUEDevice.pm
+++ b/FHEM/31_HUEDevice.pm
@@ -197,15 +197,6 @@ sub HUEDevice_Undefine($$)
   return undef;
 }
 
-sub
-HUEDevice_max($@)
-{  
-  my ($max, @vars) = @_; 
-  for (@vars) {
-    $max = $_ if $_ > $max;
-  }
-  return $max;
-}  
 sub
 HUEDevice_SetParam($$@)
 {
@@ -282,7 +273,7 @@ HUEDevice_SetParam($$@)
       #$y = 1 if( $y > 1 );
       $Y = 1 if( $Y > 1 );
 
-      my $bri  = HUEDevice_max($r,$g,$b);
+      my $bri  = maxNum($r,$g,$b);
       #my $bri  = $Y;
 
     $obj->{'on'}  = JSON::true;
@@ -411,7 +402,7 @@ xyYtorgb($$$)
     if( $X > 1
         || $Y > 1
         || $Z > 1 ) {
-      my $f = HUEDevice_max($X,$Y,$Z);
+      my $f = maxNum($X,$Y,$Z);
       $X /= $f;
       $Y /= $f;
       $Z /= $f;
@@ -425,7 +416,7 @@ xyYtorgb($$$)
     if( $r > 1
         || $g > 1
         || $b > 1 ) {
-      my $f = HUEDevice_max($r,$g,$b);
+      my $f = maxNum($r,$g,$b);
       $r /= $f;
       $g /= $f;
       $b /= $f;