diff -uprN bird-as4-md5-rr-doc/proto/bgp/attrs.c bird-as4-md5-rr-doc-fix/proto/bgp/attrs.c
--- bird-as4-md5-rr-doc/proto/bgp/attrs.c	2008-10-19 17:19:39.000000000 +0200
+++ bird-as4-md5-rr-doc-fix/proto/bgp/attrs.c	2008-10-21 21:13:51.000000000 +0200
@@ -1262,7 +1262,7 @@ bgp_decode_attrs(struct bgp_conn *conn, 
     goto loop;
 
   /* If there's no local preference, define one */
-  if (!(seen[0] && (1 << BA_LOCAL_PREF)))
+  if (!(seen[0] & (1 << BA_LOCAL_PREF)))
     bgp_attach_attr(&a->eattrs, pool, BA_LOCAL_PREF, 0);
   return a;