diff --git a/Shorewall/Perl/Shorewall/Config.pm b/Shorewall/Perl/Shorewall/Config.pm
index 1d0c77d..dec67c6 100644
--- a/Shorewall/Perl/Shorewall/Config.pm
+++ b/Shorewall/Perl/Shorewall/Config.pm
@@ -3542,7 +3542,7 @@ sub determine_kernelversion() {
 # Capability Reporting and detection.
 #
 sub Nat_Enabled() {
-    $family == F_IPV4 ? qt1( "$iptables -t nat -L -n" ) : '';
+    qt1( "$iptables -t nat -L -n" );
 }
 
 sub Persistent_Snat() {
diff --git a/Shorewall/Perl/Shorewall/Nat.pm b/Shorewall/Perl/Shorewall/Nat.pm
index fa8e425..0eea857 100644
--- a/Shorewall/Perl/Shorewall/Nat.pm
+++ b/Shorewall/Perl/Shorewall/Nat.pm
@@ -336,7 +336,7 @@ sub setup_masq()
 
     if ( my $fn = open_file( $name, 1, 1 ) ) {
 
-	first_entry( sub { progress_message2 "$doing $fn..."; require_capability 'NAT_ENABLED' , 'a non-empty $name file' , 's'; } );
+	first_entry( sub { progress_message2 "$doing $fn..."; require_capability 'NAT_ENABLED' , "a non-empty $name file" , 's'; } );
 
 	process_one_masq while read_a_line( NORMAL_READ );
     }