diff --git a/fhem/fhem.pl b/fhem/fhem.pl
index 297a7a9db..bf41c1b5c 100755
--- a/fhem/fhem.pl
+++ b/fhem/fhem.pl
@@ -5265,6 +5265,7 @@ sub
 json2nameValue($;$$$$)
 {
   my ($in, $prefix, $map, $filter, $negFilter) = @_;
+  return if(!$in); # 122048
   $prefix = "" if(!defined($prefix));
   my %ret;