diff --git a/Api/Utility/General.cs b/Api/Utility/General.cs
index 4f54573..8f44926 100644
--- a/Api/Utility/General.cs
+++ b/Api/Utility/General.cs
@@ -238,7 +238,7 @@ namespace Milimoe.FunGame.Core.Api.Utility
         /// <returns></returns>
         public static string Encrypt(this string msg, string key)
         {
-            return Encryption.HmacSha512(msg, Encryption.HmacSha512(msg, key));
+            return Encryption.HmacSha512(msg, Encryption.HmacSha512(msg, key.ToLower()));
         }
     }