diff --git a/ospfd/ospfd.h b/ospfd/ospfd.h
index f2a6109..c15b4d3 100644
--- a/ospfd/ospfd.h
+++ b/ospfd/ospfd.h
@@ -181,6 +181,8 @@
   u_char config;
 #define OSPF_RFC1583_COMPATIBLE         (1 << 0)
 #define OSPF_OPAQUE_CAPABLE		(1 << 2)
+#define OSPF_LOG_ADJACENCY_CHANGES	(1 << 3)
+#define OSPF_LOG_ADJACENCY_DETAIL	(1 << 4)
 
 #ifdef HAVE_OPAQUE_LSA
   /* Opaque-LSA administrative flags. */