--- linux-2.4.19-pre9/net/ipv4/netfilter/ip_conntrack_pptp.c.orig	Mon Jun  3 21:34:19 2002
+++ linux-2.4.19-pre9/net/ipv4/netfilter/ip_conntrack_pptp.c	Mon Jun  3 21:48:38 2002
@@ -107,11 +107,13 @@
 		if (!exp->sibling)
 			continue;
 
-		DEBUGP("setting timeout of conntrack %p to 0\n",
+		DEBUGP("killing conntrack %p\n",
 			exp->sibling);
 		exp->sibling->proto.gre.timeout = 0;
 		exp->sibling->proto.gre.stream_timeout = 0;
-		ip_ct_refresh(exp->sibling, 0);
+
+		if (del_timer(&exp->sibling->timeout))
+			ip_ct_death_by_timeout((unsigned long)exp->sibling);
 	}
 
 	return 0;