1 files changed, 1 insertions, 1 deletions

diff --git a/plugins/check_http.c b/plugins/check_http.c
index b81f214..d1f3998 100644
--- a/plugins/check_http.c
+++ b/plugins/check_http.c
@@ -225,7 +225,7 @@ process_arguments (int argc, char **argv)
 
     switch (c) {
     case '?': /* usage */
-      usage2 (_("Unknown argument"), optarg);
+      usage5 ();
       break;
     case 'h': /* help */
       print_help ();