diff --git a/strans.c b/strans.c
index 909fd4d..8954ffc 100644
--- a/strans.c
+++ b/strans.c
@@ -516,7 +516,7 @@ kokey(Rune c, u32int mod)
 	return c;
 }
 
-/* Modifier presses and unmapped keys, key 0, never engage the engine. */
+/* A modifier press or an unmapped key is key 0: it engages nothing. */
 int
 keymeaningful(u32int ks)
 {