diff --git a/server/gameserver/mapinstance.cc b/server/gameserver/mapinstance.cc
index dd36d6a4..9dad8d24 100644
--- a/server/gameserver/mapinstance.cc
+++ b/server/gameserver/mapinstance.cc
@@ -607,3 +607,10 @@ void MapInstance::UnScale(glm::vec3& v)
     v /= GetMapMeta()->scale();
     v.y = old_y;
 }
+
+glm::vec3 MapInstance::UnScaleEx(const glm::vec3& v)
+{
+    glm::vec3 result = v;
+    UnScale(result);
+    return result;
+}
diff --git a/server/gameserver/mapinstance.h b/server/gameserver/mapinstance.h
index 80becca9..b0acd455 100644
--- a/server/gameserver/mapinstance.h
+++ b/server/gameserver/mapinstance.h
@@ -39,6 +39,7 @@ class MapInstance : public std::enable_shared_from_this<MapInstance>
     bool GetPosHeight(const Position& pos, float& out_height);
     void Scale(glm::vec3& v);
     void UnScale(glm::vec3& v);
+    glm::vec3 UnScaleEx(const glm::vec3& v);
 
  private:
     void CreateThings();