diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c
index c340e2e0765b4bdf72efc9f2bd484bc7f7f36de5..9918e9eb276e783ac2e359821209d076484c85c0 100644
--- a/net/ceph/messenger.c
+++ b/net/ceph/messenger.c
@@ -2307,6 +2307,7 @@ struct ceph_msg *ceph_msg_new(int type, int front_len, gfp_t flags)
 	m->front_max = front_len;
 	m->front_is_vmalloc = false;
 	m->more_to_follow = false;
+	m->ack_stamp = 0;
 	m->pool = NULL;
 
 	/* middle */