diff --git a/metropolis/test/launch/cluster/cluster.go b/metropolis/test/launch/cluster/cluster.go
index e73385d..14a7307 100644
--- a/metropolis/test/launch/cluster/cluster.go
+++ b/metropolis/test/launch/cluster/cluster.go
@@ -973,6 +973,9 @@
 				if n.State != cpb.NodeState_NODE_STATE_NEW {
 					continue
 				}
+				if seenNodes[n.Id] {
+					continue
+				}
 				seenNodes[n.Id] = true
 				cluster.Nodes[n.Id] = &NodeInCluster{
 					ID:     n.Id,