diff --git a/p2p/simulations/adapters/exec.go b/p2p/simulations/adapters/exec.go
index 808383939b..f34ac33043 100644
--- a/p2p/simulations/adapters/exec.go
+++ b/p2p/simulations/adapters/exec.go
@@ -105,8 +105,8 @@ func (e *ExecAdapter) NewNode(config *NodeConfig) (Node, error) {
 	conf.Stack.P2P.NAT = nil
 	conf.Stack.NoUSB = true
 
-	// listen on a random localhost port (we'll get the actual port after
-	// starting the node through the RPC admin.nodeInfo method)
+	// listen on a localhost port, which we set when we
+	// initialise NodeConfig (usually a random port)
 	conf.Stack.P2P.ListenAddr = fmt.Sprintf("127.0.0.1:%d", config.Port)
 
 	node := &ExecNode{