diff --git a/p2p/peer/peerstore.go b/p2p/peer/peerstore.go
index 1a75a6843..32d6207ea 100644
--- a/p2p/peer/peerstore.go
+++ b/p2p/peer/peerstore.go
@@ -26,6 +26,9 @@ type Peerstore interface {
 	// that peer, useful to other services.
 	PeerInfo(ID) PeerInfo
 
+	// AddPeerInfo absorbs the information listed in given PeerInfo.
+	AddPeerInfo(PeerInfo)
+
 	// Get/Put is a simple registry for other peer-related key/value pairs.
 	// if we find something we use often, it should become its own set of
 	// methods. this is a last resort.
@@ -235,6 +238,10 @@ func (ps *peerstore) PeerInfo(p ID) PeerInfo {
 	}
 }
 
+func (ps *peerstore) AddPeerInfo(pi PeerInfo) {
+	ps.AddAddresses(pi.ID, pi.Addrs)
+}
+
 func PeerInfos(ps Peerstore, peers []ID) []PeerInfo {
 	pi := make([]PeerInfo, len(peers))
 	for i, p := range peers {