diff --git a/fhem/FHEM/01_FHEMWEB.pm b/fhem/FHEM/01_FHEMWEB.pm
index eee10f0dd..b2182f588 100755
--- a/fhem/FHEM/01_FHEMWEB.pm
+++ b/fhem/FHEM/01_FHEMWEB.pm
@@ -2337,7 +2337,7 @@ FW_dev2image($)
     my @list = split(" ", $devStateIcon);
     foreach my $l (@list) {
       my ($re,$iconName) = split(":", $l);
-      if($re && $state =~ m/^$re$/) {
+      if(defined($re) && $state =~ m/^$re$/) {
         return FW_getIcon($iconName);   # Can be used to preserve text
       }
     }