diff --git a/fhem/FHEM/33_readingsGroup.pm b/fhem/FHEM/33_readingsGroup.pm
index 3114933c5..69cd9b141 100644
--- a/fhem/FHEM/33_readingsGroup.pm
+++ b/fhem/FHEM/33_readingsGroup.pm
@@ -608,7 +608,7 @@ readingsGroup_2html($;$)
           my $webCmdFn = 0;
           my $cmd = lookup2($hash->{helper}{commands},$name,$d,$txt);
 
-          if( $cmd && $cmd =~ m/^([\w.-]*):(\S*)?(\s\S*)?$/ ) {
+          if( $cmd && $cmd =~ m/^([\w\/.-]*):(\S*)?(\s\S*)?$/ ) {
             my $set = $1;
             my $values = $2;
             $set .= $3 if( $3 );
@@ -770,7 +770,7 @@ readingsGroup_2html($;$)
         if( !$devStateIcon ) {
           $cmd = lookup2($hash->{helper}{commands},$name,$n,$v) if( !$devStateIcon );
 
-          if( $cmd && $cmd =~ m/^([\w.-]*):(\S*)?(\s\S*)?$/ ) {
+          if( $cmd && $cmd =~ m/^([\w\/.-]*):(\S*)?(\s\S*)?$/ ) {
             my $set = $1;
             my $values = $2;
             $set .= $3 if( $3 );