diff --git a/proto.go b/proto.go
index b145f00..9ae60f2 100644
--- a/proto.go
+++ b/proto.go
@@ -101,9 +101,11 @@ func pbToPeerInfo(p *pb.Message_PeerInfo) (pstore.PeerInfo, error) {
 	return pstore.PeerInfo{ID: id, Addrs: addrs}, nil
 }
 
-func newRegisterResponse() *pb.Message_RegisterResponse {
+func newRegisterResponse(ttl int) *pb.Message_RegisterResponse {
+	ttl64 := int64(ttl)
 	r := new(pb.Message_RegisterResponse)
 	r.Status = pb.Message_OK.Enum()
+	r.Ttl = &ttl64
 	return r
 }
 
diff --git a/svc.go b/svc.go
index 57227f5..0be1f07 100644
--- a/svc.go
+++ b/svc.go
@@ -172,7 +172,7 @@ func (rz *RendezvousService) handleRegister(p peer.ID, m *pb.Message_Register) *
 		rzs.Register(p, ns, maddrs, ttl)
 	}
 
-	return newRegisterResponse()
+	return newRegisterResponse(ttl)
 }
 
 func (rz *RendezvousService) handleUnregister(p peer.ID, m *pb.Message_Unregister) error {