diff --git a/cmdline.c b/cmdline.c
index b1bf07fe..1aced283 100644
--- a/cmdline.c
+++ b/cmdline.c
@@ -78,8 +78,8 @@ void cmdline_cleanup(void)
 
 /*
  * Similar interface to seat_get_userpass_input(), except that here a
- * -1 return means that we aren't capable of processing the prompt and
- * someone else should do it.
+ * SPR(K)_INCOMPLETE return means that we aren't capable of processing
+ * the prompt and someone else should do it.
  */
 SeatPromptResult cmdline_get_passwd_input(
     prompts_t *p, cmdline_get_passwd_input_state *state, bool restartable)