diff --git a/theories/relations.v b/theories/relations.v
index 56e257a9ed38cc2dd2b2504e7669d1dfdb7325f7..32522c05b000683023031a405301a0977ecf884a 100644
--- a/theories/relations.v
+++ b/theories/relations.v
@@ -280,8 +280,8 @@ Section properties.
   Lemma wn_step_rtc x y : wn R y → rtc R x y → wn R x.
   Proof. induction 2; eauto using wn_step. Qed.
 
-  (** An acyclic relation that can only take finitely many steps is strongly
-  normalizing *)
+  (** An acyclic relation that can only take finitely many steps (sometimes
+  called "globally finite") is strongly normalizing *)
   Lemma tc_finite_sn x : Irreflexive (tc R) → pred_finite (tc R x) → sn R x.
   Proof.
     intros Hirr [xs Hfin]. remember (length xs) as n eqn:Hn.