diff --git a/fhem/FHEM/96_allowed.pm b/fhem/FHEM/96_allowed.pm
index 1db74771e..7031bab7a 100755
--- a/fhem/FHEM/96_allowed.pm
+++ b/fhem/FHEM/96_allowed.pm
@@ -4,6 +4,7 @@ package main;
 
 use strict;
 use warnings;
+use vars qw(@FW_httpheader); # HTTP header, line by line
 
 #####################################
 sub