diff --git a/cmd/bulb/main.ha b/cmd/bulb/main.ha
index e9b00dc..5dc6c9d 100644
--- a/cmd/bulb/main.ha
+++ b/cmd/bulb/main.ha
@@ -21,11 +21,10 @@ export fn main() void = {
 		"bulletin board",
 		("post", [
 			('a', "post anonymously"),
-			('b', "board", "which board to post on"),
-			"message...",
+			('b', "board", "post on a board other than general"),
 		]): getopt::subcmd_help,
 		("read", [
-			('b', "board", "which board to read"),
+			('b', "board", "read a board other than general"),
 			('n', "number", "display N most recent messages"),
 		]): getopt::subcmd_help);
 	defer getopt::finish(&cmd);