diff --git a/Shorewall/Perl/Shorewall/Rules.pm b/Shorewall/Perl/Shorewall/Rules.pm
index 26377e368..bb0ea9049 100644
--- a/Shorewall/Perl/Shorewall/Rules.pm
+++ b/Shorewall/Perl/Shorewall/Rules.pm
@@ -673,7 +673,7 @@ sub add_common_rules() {
 
 	    for $interface ( @$list ) {
 		my $chainref = $filter_table->{input_chain $interface};
-		my $base     = uc chain_base $interface;
+		my $base     = uc chain_base get_physical $interface;
 		my $variable = get_interface_gateway $interface;
 
 		if ( interface_is_optional $interface ) {