diff --git a/Shorewall/Perl/Shorewall/Chains.pm b/Shorewall/Perl/Shorewall/Chains.pm
index 096bb59e0..c06474a70 100644
--- a/Shorewall/Perl/Shorewall/Chains.pm
+++ b/Shorewall/Perl/Shorewall/Chains.pm
@@ -1196,12 +1196,15 @@ sub compatible( $$ ) {
     }
     #
     # Don't combine chains where each specifies
-    #    '-m policy'
-    #    ( --multiport and ( --dport or --sport or -m multiport ) )
+    #    -m policy
+    # or when one specifies
+    #    -m multiport
+    # and the other specifies
+    #    --dport or --sport or -m multiport
     #
     return ! ( $ref1->{policy} && $ref2->{policy} ||
 	       ( ( $ref1->{multiport} && ( $ref2->{dport} || $ref2->{sport} || $ref2->{multiport} ) ) ||
-		 ( $ref2->{multiport} && ( $ref1->{dport} || $ref1->{sport} || $ref1->{multiport} ) ) ) );
+		 ( $ref2->{multiport} && ( $ref1->{dport} || $ref1->{sport} ) ) ) );
 }
 
 #