diff --git a/libp2pdht/private/eth/p2p/discoveryv5/chronosim.nim b/libp2pdht/private/eth/p2p/discoveryv5/chronosim.nim
index f07dd53..b0c8875 100644
--- a/libp2pdht/private/eth/p2p/discoveryv5/chronosim.nim
+++ b/libp2pdht/private/eth/p2p/discoveryv5/chronosim.nim
@@ -14,7 +14,10 @@ import
 logScope:
   topics = "ChronoSim"
 
-when(true): #enable network emulator
+const
+  emulateDatagram = true
+
+when(emulateDatagram): #enable network emulator
   type
     DatagramCallback* = proc(transp: DatagramTransport,
                             remote: TransportAddress): Future[void] {.