diff --git a/p2p/nat/natupnp.go b/p2p/nat/natupnp.go
index 92afd77c84..f98d1f043a 100644
--- a/p2p/nat/natupnp.go
+++ b/p2p/nat/natupnp.go
@@ -37,13 +37,6 @@ const (
 	rateLimit          = 200 * time.Millisecond
 	retryCount         = 3 // number of retries after a failed AddPortMapping
 	randomCount        = 3 // number of random ports to try
-
-	// According to the UPnP spec delete before add is not needed if the
-	// private IP remained the same. However, we have seen this workaround
-	// being used in practice. It could also create problems, so we keep it
-	// disabled by default. If the private IP changed, an external port change
-	// should be OK.
-	deleteBeforeAdd = false
 )
 
 type upnp struct {
@@ -100,10 +93,6 @@ func (n *upnp) AddMapping(protocol string, extport, intport int, desc string, li
 
 	if extport == 0 {
 		extport = intport
-	} else if deleteBeforeAdd {
-		// Only delete port mapping if the external port was already used by geth.
-		err := n.DeleteMapping(protocol, extport, intport)
-		log.Trace("Deleting port mapping", "protocol", protocol, "extport", extport, "intport", intport, "err", err)
 	}
 
 	// Try to add port mapping, preferring the specified external port.