diff --git a/score_params.go b/score_params.go
index 94f5525..6ee0654 100644
--- a/score_params.go
+++ b/score_params.go
@@ -76,7 +76,8 @@ type PeerScoreParams struct {
 	// P7: behavioural pattern penalties.
 	// This parameter has an associated counter which tracks misbehaviour as detected by the
 	// router. The router currently applies penalties for the following behaviors:
-	// - attempting to re-graft before the prune backoff time has elapsed
+	// - attempting to re-graft before the prune backoff time has elapsed.
+	// - not following up in IWANT requests for messages advertised with IHAVE.
 	//
 	// The value of the parameter is the square of the counter, which decays with  BehaviourPenaltyDecay.
 	// The weight of the parameter MUST be negative (or zero to disable).