diff --git a/src/authserver/Server/AuthSocket.cpp b/src/authserver/Server/AuthSocket.cpp
index 9f09e7fe2..c662f544f 100644
--- a/src/authserver/Server/AuthSocket.cpp
+++ b/src/authserver/Server/AuthSocket.cpp
@@ -1030,7 +1030,7 @@ bool AuthSocket::_HandleRealmList()
         pkt << AmountOfCharacters;
         pkt << realm.timezone;                              // realm category
         if (_expversion & POST_BC_EXP_FLAG)                 // 2.x and 3.x clients
-            pkt << uint8(0x2C);                             // unk, may be realm number/id?
+            pkt << uint8(realm.m_ID);
         else
             pkt << uint8(0x0);                              // 1.12.1 and 1.12.2 clients