diff --git a/waku/v2/peermanager/peer_manager.go b/waku/v2/peermanager/peer_manager.go
index 72d2d293..69f665df 100644
--- a/waku/v2/peermanager/peer_manager.go
+++ b/waku/v2/peermanager/peer_manager.go
@@ -12,15 +12,12 @@ import (
 	ma "github.com/multiformats/go-multiaddr"
 	"github.com/waku-org/go-waku/logging"
 	wps "github.com/waku-org/go-waku/waku/v2/peerstore"
+	"github.com/waku-org/go-waku/waku/v2/protocol/relay"
 	"github.com/waku-org/go-waku/waku/v2/utils"
 
 	"go.uber.org/zap"
 )
 
-// WakuRelayIDv200 is protocol ID for Waku v2 relay protocol
-// TODO: Move all the protocol IDs to a common location.
-const WakuRelayIDv200 = protocol.ID("/vac/waku/relay/2.0.0")
-
 // PeerManager applies various controls and manage connections towards peers.
 type PeerManager struct {
 	peerConnector       *PeerConnectionStrategy
@@ -133,10 +130,10 @@ func (pm *PeerManager) getRelayPeers() (inRelayPeers peer.IDSlice, outRelayPeers
 
 	//Need to filter peers to check if they support relay
 	if inPeers.Len() != 0 {
-		inRelayPeers, _ = utils.FilterPeersByProto(pm.host, inPeers, WakuRelayIDv200)
+		inRelayPeers, _ = utils.FilterPeersByProto(pm.host, inPeers, relay.WakuRelayID_v200)
 	}
 	if outPeers.Len() != 0 {
-		outRelayPeers, _ = utils.FilterPeersByProto(pm.host, outPeers, WakuRelayIDv200)
+		outRelayPeers, _ = utils.FilterPeersByProto(pm.host, outPeers, relay.WakuRelayID_v200)
 	}
 	return
 }
@@ -283,7 +280,7 @@ func (pm *PeerManager) RemovePeer(peerID peer.ID) {
 // Adding to peerStore is expected to be already done by caller.
 // If relay proto is passed, it is not added to serviceSlot.
 func (pm *PeerManager) addPeerToServiceSlot(proto protocol.ID, peerID peer.ID) {
-	if proto == WakuRelayIDv200 {
+	if proto == relay.WakuRelayID_v200 {
 		pm.logger.Warn("Cannot add Relay peer to service peer slots")
 		return
 	}
diff --git a/waku/v2/peermanager/peer_manager_test.go b/waku/v2/peermanager/peer_manager_test.go
index a64bce9f..ac7c2b1c 100644
--- a/waku/v2/peermanager/peer_manager_test.go
+++ b/waku/v2/peermanager/peer_manager_test.go
@@ -13,6 +13,7 @@ import (
 	"github.com/stretchr/testify/require"
 	"github.com/waku-org/go-waku/tests"
 	wps "github.com/waku-org/go-waku/waku/v2/peerstore"
+	"github.com/waku-org/go-waku/waku/v2/protocol/relay"
 	"github.com/waku-org/go-waku/waku/v2/utils"
 )
 
@@ -110,7 +111,7 @@ func TestDefaultProtocol(t *testing.T) {
 	// check peer for default protocol
 	///////////////
 	//Test empty peer selection for relay protocol
-	_, err := pm.SelectPeer(WakuRelayIDv200, nil)
+	_, err := pm.SelectPeer(relay.WakuRelayID_v200, nil)
 	require.Error(t, err, utils.ErrNoPeersAvailable)
 
 	///////////////
@@ -121,11 +122,11 @@ func TestDefaultProtocol(t *testing.T) {
 	defer h5.Close()
 
 	//Test peer selection for relay protocol from peer store
-	_, err = pm.AddPeer(getAddr(h5), wps.Static, WakuRelayIDv200)
+	_, err = pm.AddPeer(getAddr(h5), wps.Static, relay.WakuRelayID_v200)
 	require.NoError(t, err)
 
 	// since we are not passing peerList, selectPeer fn using filterByProto checks in PeerStore for peers with same protocol.
-	peerID, err := pm.SelectPeer(WakuRelayIDv200, nil)
+	peerID, err := pm.SelectPeer(relay.WakuRelayID_v200, nil)
 	require.NoError(t, err)
 	require.Equal(t, peerID, h5.ID())
 }
diff --git a/waku/v2/peermanager/service_slot.go b/waku/v2/peermanager/service_slot.go
index aff2d856..c88711e7 100644
--- a/waku/v2/peermanager/service_slot.go
+++ b/waku/v2/peermanager/service_slot.go
@@ -5,6 +5,7 @@ import (
 
 	"github.com/libp2p/go-libp2p/core/peer"
 	"github.com/libp2p/go-libp2p/core/protocol"
+	"github.com/waku-org/go-waku/waku/v2/protocol/relay"
 	"github.com/waku-org/go-waku/waku/v2/utils"
 )
 
@@ -57,7 +58,7 @@ func NewServiceSlot() *ServiceSlots {
 // getPeers for getting all the peers for a given protocol
 // since peerMap is only used in peerManager that's why it is unexported
 func (slots *ServiceSlots) getPeers(proto protocol.ID) *peerMap {
-	if proto == WakuRelayIDv200 {
+	if proto == relay.WakuRelayID_v200 {
 		return nil
 	}
 	slots.mu.Lock()