diff --git a/Shorewall/Perl/Shorewall/Rules.pm b/Shorewall/Perl/Shorewall/Rules.pm
index efa88c03f..7c710754d 100644
--- a/Shorewall/Perl/Shorewall/Rules.pm
+++ b/Shorewall/Perl/Shorewall/Rules.pm
@@ -25,7 +25,6 @@
 package Shorewall::Rules;
 require Exporter;
 
-use Scalar::Util 'reftype';
 use Shorewall::Config qw(:DEFAULT :internal);
 use Shorewall::IPAddrs;
 use Shorewall::Zones;
@@ -1998,7 +1997,7 @@ sub generate_matrix() {
 			my $match_source_dev = '';
 			my $forwardchainref = $filter_table->{forward_chain $interface};
 
-			if ( use_forward_chain $interface || ( @{$forwardchainref->{rules} } && ! reftype $chainref ) ) {
+			if ( use_forward_chain $interface || ( @{$forwardchainref->{rules} } && ! $chainref ) ) {
 			    #
 			    # Either we must use the interface's forwarding chain or that chain has rules and we have nowhere to move them
 			    #