1 files changed, 2 insertions, 2 deletions
diff --git a/tests/account-store.c b/tests/account-store.c
index 7e609a1c..cb2900b8 100644
--- a/tests/account-store.c
+++ b/tests/account-store.c
@@ -87,7 +87,7 @@ const Backend backends[] = {
 };
 
 static void usage (const gchar *name, const gchar *fmt,
-    ...) G_GNUC_NORETURN;
+    ...) G_GNUC_NORETURN G_GNUC_PRINTF (2, 3);
 
 #if ENABLE_GNOME_KEYRING
 #include <gnome-keyring.h>
@@ -141,7 +141,7 @@ int main (int argc, char **argv)
 #endif
 
   if (argc < 3)
-    usage (argv[0], "");
+    usage (argv[0], "Not enough arguments");
 
   op_name = argv[1];
   backend = argv[2];