diff -Nuar snort-2.8.3.2.orig/src/fpdetect.c snort-2.8.3.2/src/fpdetect.c
--- snort-2.8.3.2.orig/src/fpdetect.c	2008-12-30 16:43:42.000000000 +0100
+++ snort-2.8.3.2/src/fpdetect.c	2009-03-04 09:38:31.078401978 +0100
@@ -985,7 +985,7 @@
     DEBUG_WRAP(DebugMessage(DEBUG_DETECT, "[*] Rule Head %d\n", 
                 rtn->head_node_number);)
 
-    if(!rtn->rule_func->RuleHeadFunc(p, rtn, rtn->rule_func))
+    if(!rtn->rule_func->RuleHeadFunc(p, rtn, rtn->rule_func, check_ports))
     {
         DEBUG_WRAP(DebugMessage(DEBUG_DETECT,
                     "   => Header check failed, checking next node\n"););