diff --git a/README.md b/README.md
index c56158f..bb2d4ea 100644
--- a/README.md
+++ b/README.md
@@ -56,6 +56,19 @@ Edit your server's CMakeLists.txt and insert those lines above `add_executable(g
   # add_executable(game-server ..
 ```
 
+Then add a callback context to the gameserver.
+```C++
+// src/game/server/gamecontext.h
+
+#include <server/ddnet_callback_ctx.h>
+
+class CGameContext
+{
+	// [..]
+	TWBL::CDDNetCallbackCtx m_TwblCallbackCtx;
+};
+```
+
 Then add a state buffer to the player class.
 ```C++
 // src/game/server/player.h
@@ -87,6 +100,7 @@ void CCharacter::Tick()
 	TWBL::SetState(this, &State);
 	State.m_pCollision = Collision();
 	State.m_ppPlayers = GameServer()->m_apPlayers;
+	State.m_pCallbackCtx = &GameServer()->m_TwblCallbackCtx;
 
 	Twbl_SampleTick(&State, &Bot, &GetPlayer()->m_TwblPersistentState, sizeof(GetPlayer()->m_TwblPersistentState));
 
diff --git a/src/server/set_state.h b/src/server/set_state.h
index 3ed2e95..d3241d2 100644
--- a/src/server/set_state.h
+++ b/src/server/set_state.h
@@ -11,15 +11,12 @@
 
 namespace TWBL {
 
-void SetState(CCharacter *pChr, CServerBotStateIn *pState)
+void SetState(CCharacter *pChr, CServerBotStateIn *pState, *pCallbackCtx)
 {
-	CDDNetCallbackCtx CallbackCtx;
-	CallbackCtx.m_pGameServer = pChr->GameServer();
-
 	pState->m_GameTick = pChr->GameServer()->Server()->Tick();
 	pState->m_pCharacter = pChr;
 	pState->m_ClientId = pChr->GetPlayer()->GetCid();
-	pState->m_pCallbackCtx = &CallbackCtx;
+	pState->m_pCallbackCtx = pCallbackCtx;
 }
 
 } // namespace TWBL