diff --git a/LrpN/usr/share/shorewall/firewall b/LrpN/usr/share/shorewall/firewall
index c5766091d..8f7e72314 100755
--- a/LrpN/usr/share/shorewall/firewall
+++ b/LrpN/usr/share/shorewall/firewall
@@ -3968,7 +3968,7 @@ add_a_rule()
 	    proto=
 	    ;;
 	ipp2p)
-	    sport="-m ipp2p --${port:-ipp2p}"
+	    dports="-m ipp2p --${port:-ipp2p}"
 	    port=
 	    proto=tcp
 	    do_ports