diff --git a/cmd/dwelling-home/main.go b/cmd/dwelling-home/main.go
index f30350a..984c7ce 100644
--- a/cmd/dwelling-home/main.go
+++ b/cmd/dwelling-home/main.go
@@ -23,7 +23,7 @@ var showVersion *bool = flag.Bool("v", false, "show version")
 var listenAddress *string = flag.String("l", "/var/run/dwelling-home/sock", "listen address (ip:port|unix_path)")
 var captchaExpiry *time.Duration = flag.Duration("ce", 10*time.Minute, "CAPTCHA expiry (e.g. 5m, 60s)")
 var guestbookOwner *string = flag.String("gbo", "Admin", "name of a guestbook owner")
-var guestbookPageSize *int64 = flag.Int64("gbo", 60, "size of a guestbook page")
+var guestbookPageSize *int64 = flag.Int64("gbp", 60, "size of a guestbook page")
 var databasesPath *string = flag.String("db", "/var/lib/dwelling-home", "path to a directory where to store DB files")
 
 func main() {