diff --git a/pimd/pim_pim.h b/pimd/pim_pim.h
index 6be1a3e..4b378fb 100644
--- a/pimd/pim_pim.h
+++ b/pimd/pim_pim.h
@@ -41,8 +41,14 @@
 #define PIM_DEFAULT_T_PERIODIC                   (60)   /* RFC 4601: 4.11.  Timer Values */
 
 #define PIM_MSG_TYPE_HELLO      (0)
+#define PIM_MSG_TYPE_REGISTER   (1)
+#define PIM_MSG_TYPE_REG_STOP   (2)
 #define PIM_MSG_TYPE_JOIN_PRUNE (3)
+#define PIM_MSG_TYPE_BOOTSTRAP  (4)
 #define PIM_MSG_TYPE_ASSERT     (5)
+#define PIM_MSG_TYPE_GRAFT      (6)
+#define PIM_MSG_TYPE_GRAFT_ACK  (7)
+#define PIM_MSG_TYPE_CANDIDATE  (8)
 
 #define PIM_MSG_HDR_OFFSET_VERSION(pim_msg) (pim_msg)
 #define PIM_MSG_HDR_OFFSET_TYPE(pim_msg) (pim_msg)