diff --git a/lntemp/harness.go b/lntemp/harness.go
index 700ab68cb..07e0a4966 100644
--- a/lntemp/harness.go
+++ b/lntemp/harness.go
@@ -172,7 +172,7 @@ func (h *HarnessTest) SetupStandbyNodes() {
 	// each.
 	nodes := []*node.HarnessNode{h.Alice, h.Bob}
 	for _, hn := range nodes {
-		h.manager.standbyNodes[hn.PubKeyStr] = hn
+		h.manager.standbyNodes[hn.Cfg.NodeID] = hn
 		for i := 0; i < 10; i++ {
 			resp := hn.RPC.NewAddress(addrReq)
 
@@ -342,9 +342,9 @@ func (h *HarnessTest) Subtest(t *testing.T) (*HarnessTest, func()) {
 
 // shutdownNonStandbyNodes will shutdown any non-standby nodes.
 func (h *HarnessTest) shutdownNonStandbyNodes() {
-	for pks, node := range h.manager.activeNodes {
+	for nid, node := range h.manager.activeNodes {
 		// If it's a standby node, skip.
-		_, ok := h.manager.standbyNodes[pks]
+		_, ok := h.manager.standbyNodes[nid]
 		if ok {
 			continue
 		}
diff --git a/lntemp/harness_node_manager.go b/lntemp/harness_node_manager.go
index a16375353..3cf8469a9 100644
--- a/lntemp/harness_node_manager.go
+++ b/lntemp/harness_node_manager.go
@@ -33,11 +33,11 @@ type nodeManager struct {
 
 	// activeNodes is a map of all running nodes, format:
 	// {pubkey: *HarnessNode}.
-	activeNodes map[string]*node.HarnessNode
+	activeNodes map[uint32]*node.HarnessNode
 
 	// standbyNodes is a map of all the standby nodes, format:
 	// {pubkey: *HarnessNode}.
-	standbyNodes map[string]*node.HarnessNode
+	standbyNodes map[uint32]*node.HarnessNode
 
 	// nodeCounter is a monotonically increasing counter that's used as the
 	// node's unique ID.
@@ -54,8 +54,8 @@ func newNodeManager(lndBinary string,
 	return &nodeManager{
 		lndBinary:    lndBinary,
 		dbBackend:    dbBackend,
-		activeNodes:  make(map[string]*node.HarnessNode),
-		standbyNodes: make(map[string]*node.HarnessNode),
+		activeNodes:  make(map[uint32]*node.HarnessNode),
+		standbyNodes: make(map[uint32]*node.HarnessNode),
 	}
 }
 
@@ -126,7 +126,7 @@ func (nm *nodeManager) newNode(t *testing.T, name string, extraArgs []string,
 // retrieved their public keys via FetchNodeInfo.
 func (nm *nodeManager) registerNode(node *node.HarnessNode) {
 	nm.Lock()
-	nm.activeNodes[node.PubKeyStr] = node
+	nm.activeNodes[node.Cfg.NodeID] = node
 	nm.Unlock()
 }
 
@@ -137,7 +137,7 @@ func (nm *nodeManager) shutdownNode(node *node.HarnessNode) error {
 		return err
 	}
 
-	delete(nm.activeNodes, node.PubKeyStr)
+	delete(nm.activeNodes, node.Cfg.NodeID)
 	return nil
 }