diff --git a/routes/web.php b/routes/web.php
index 4076d27..b7e3978 100644
--- a/routes/web.php
+++ b/routes/web.php
@@ -119,7 +119,7 @@ Route::middleware(['auth','verified','activeuser'])->group(function () {
 	Route::match(['get','post'],'link',[UserController::class,'link']);
 	Route::post('packet/contents/{o}/{packet}',[HomeController::class,'packet_contents'])
 		->where('o','[0-9]+')
-		->where('packet','[0-9a-z]+');
+		->where('packet','[[:xdigit:]]+');
 	Route::get('permissions',[HomeController::class,'permissions']);
 
 	Route::match(['get','post'],'user/system/register',[SystemController::class,'register']);