diff --git a/fhem/fhem.pl b/fhem/fhem.pl
index 84a9bb494..b8dda8bab 100755
--- a/fhem/fhem.pl
+++ b/fhem/fhem.pl
@@ -993,8 +993,8 @@ devspec2array($)
 
         my $lre = ($n eq "room" ? "(^|,)($re)(,|\$)" : "^($re)\$");
         eval { # a bad regexp is deadly
-          if(($op eq  "=" && $val =~ m/$lre/) ||
-             ($op eq "!=" && $val !~ m/$lre/)) {
+          if(($op eq  "=" && $val =~ m/$lre/s) ||
+             ($op eq "!=" && $val !~ m/$lre/s)) {
             push @res, $d 
           }
         };