diff --git a/include/aos/aos_rpc.h b/include/aos/aos_rpc.h
index f2166d1..a12128d 100644
--- a/include/aos/aos_rpc.h
+++ b/include/aos/aos_rpc.h
@@ -18,8 +18,8 @@
 #include <aos/aos.h>
 
 // define some message types
-#define RPC_MTYPE_CHILD_ENDPOINT    0UL
-#define RPC_MTYPE_CHILD_ENDPOINT_OK 1UL
+#define RPC_MTYPE_CHILD_ENDPOINT    1UL
+#define RPC_MTYPE_CHILD_ENDPOINT_OK 2UL
 
 
 /* An RPC binding, which may be transported over LMP or UMP. */
diff --git a/lib/aos/init.c b/lib/aos/init.c
index 129ff76..ac0e409 100644
--- a/lib/aos/init.c
+++ b/lib/aos/init.c
@@ -217,7 +217,7 @@ errval_t barrelfish_init_onthread(struct spawn_domain_params *params)
     init_chan_initialized = false;
     err = lmp_chan_register_recv(init_chan, get_default_waitset(), MKCLOSURE(handle_init_recv, init_chan));
     /* send local ep to init */
-    err = lmp_chan_send0(init_chan, LMP_FLAG_YIELD | LMP_FLAG_SYNC, init_chan->local_cap);
+    err = lmp_chan_send1(init_chan, LMP_FLAG_YIELD | LMP_FLAG_SYNC, init_chan->local_cap, RPC_MTYPE_CHILD_ENDPOINT);
     if (err_is_fail(err)) {
         // should never fail since init listens before invoking the dispatcher
         return err_push(err, LIB_ERR_LMP_CHAN_SEND);