--- a/cmd-wait-for.c
+++ b/cmd-wait-for.c
@@ -33,7 +33,7 @@
 const struct cmd_entry cmd_wait_for_entry = {
 	"wait-for", "wait",
 	"LSU", 1, 1,
-	"[-LSU] channel",
+	"[-L|-S|-U] channel",
 	0,
 	NULL,
 	cmd_wait_for_exec