diff --git a/fhem/FHEM/31_HUEDevice.pm b/fhem/FHEM/31_HUEDevice.pm
index cfe6728d1..4a36660e4 100644
--- a/fhem/FHEM/31_HUEDevice.pm
+++ b/fhem/FHEM/31_HUEDevice.pm
@@ -191,7 +191,7 @@ sub HUEDevice_Undefine($$)
 }
 
 sub
-max($@)
+HUEDevice_max($@)
 {  
   my ($max, @vars) = @_; 
   for (@vars) {
@@ -275,7 +275,7 @@ HUEDevice_SetParam($$@)
       #$y = 1 if( $y > 1 );
       $Y = 1 if( $Y > 1 );
 
-      my $bri  = max($r,$g,$b);
+      my $bri  = HUEDevice_max($r,$g,$b);
       #my $bri  = $Y;
 
     $obj->{'on'}  = JSON::true;
@@ -404,7 +404,7 @@ xyYtorgb($$$)
     if( $X > 1
         || $Y > 1
         || $Z > 1 ) {
-      my $f = max($X,$Y,$Z);
+      my $f = HUEDevice_max($X,$Y,$Z);
       $X /= $f;
       $Y /= $f;
       $Z /= $f;
@@ -418,7 +418,7 @@ xyYtorgb($$$)
     if( $r > 1
         || $g > 1
         || $b > 1 ) {
-      my $f = max($r,$g,$b);
+      my $f = HUEDevice_max($r,$g,$b);
       $r /= $f;
       $g /= $f;
       $b /= $f;