diff --git a/Shorewall-perl/Shorewall/Rules.pm b/Shorewall-perl/Shorewall/Rules.pm
index 42a4856ba..8e4825137 100644
--- a/Shorewall-perl/Shorewall/Rules.pm
+++ b/Shorewall-perl/Shorewall/Rules.pm
@@ -388,7 +388,7 @@ sub process_criticalhosts() {
 	my @hosts;
 
 	for my $host ( split /,/, $hosts ) {
-	    push @hosts, "$interface:$hosts";
+	    push @hosts, "$interface:$host";
 	}
 
 	unless ( $options eq '-' ) {