diff --git a/src/common/Collision/Models/GameObjectModel.cpp b/src/common/Collision/Models/GameObjectModel.cpp
index ac0bdefc724..6863b67089d 100644
--- a/src/common/Collision/Models/GameObjectModel.cpp
+++ b/src/common/Collision/Models/GameObjectModel.cpp
@@ -22,6 +22,7 @@
 #include "WorldModel.h"
 #include "GameObjectModel.h"
 #include "Log.h"
+#include "MapTree.h"
 #include "Timer.h"
 
 using G3D::Vector3;