diff --git a/zpay32/hophint.go b/zpay32/hophint.go
index 266c95d7d..feb33f9f0 100644
--- a/zpay32/hophint.go
+++ b/zpay32/hophint.go
@@ -6,7 +6,10 @@ const (
 	// DefaultAssumedFinalCLTVDelta is the default value to be used as the
 	// final CLTV delta for a route if one is unspecified in the payment
 	// request.
-	DefaultAssumedFinalCLTVDelta = 9
+	// We adhere to the recommendation in BOLT 02 for terminal payments.
+	// See also:
+	// https://github.com/lightning/bolts/blob/master/02-peer-protocol.md
+	DefaultAssumedFinalCLTVDelta = 18
 )
 
 // HopHint is a routing hint that contains the minimum information of a channel