diff -u l7-filter-userspace-original/l7-queue.cpp l7-filter-userspace/l7-queue.cpp
--- l7-filter-userspace-original/l7-queue.cpp   2008-09-27 08:51:01.000000000 +0200
+++ l7-filter-userspace/l7-queue.cpp    2010-10-25 00:02:59.000000000 +0200
@@ -196,7 +196,7 @@
   ifi = nfq_get_outdev(tb);
   if(ifi) l7printf(4, "outdev = %d ", ifi);

-  ret = nfq_get_payload(tb, &data);
+  ret = nfq_get_payload(tb, (unsigned char**)&data);
   if(ret >= 0) l7printf(4, "payload_len = %d\n", ret);

   char ip_protocol = data[9];