diff --git a/public/game/jointest.php b/public/game/jointest.php
index 5e84ccf..233f395 100644
--- a/public/game/jointest.php
+++ b/public/game/jointest.php
@@ -18,5 +18,5 @@ $data = ob_get_clean();
 $signature;
 $key = file_get_contents("../GameRBLX/PrivKey.pem");
 openssl_sign($data, $signature, $key, OPENSSL_ALGO_SHA1);
-echo "" . sprintf("%%%s%%%s", base64_encode($signature), $data);
+echo "--rbxsig" . sprintf("%%%s%%%s", base64_encode($signature), $data);
 ?>
\ No newline at end of file