diff --git a/src/server/apps/authserver/Server/AuthSession.cpp b/src/server/apps/authserver/Server/AuthSession.cpp
index 648939cb1..741e4724e 100644
--- a/src/server/apps/authserver/Server/AuthSession.cpp
+++ b/src/server/apps/authserver/Server/AuthSession.cpp
@@ -689,12 +689,9 @@ bool AuthSession::HandleReconnectProof()
     if (_accountInfo.Login.empty())
         return false;
 
-    BigNumber t1;
-    t1.SetBinary(reconnectProof->R1, 16);
-
     Acore::Crypto::SHA1 sha;
     sha.UpdateData(_accountInfo.Login);
-    sha.UpdateData(t1.ToByteArray<16>());
+    sha.UpdateData(reconnectProof->R1, 16);
     sha.UpdateData(_reconnectProof);
     sha.UpdateData(_sessionKey);
     sha.Finalize();