diff --git a/Source/UI/Lists/UIDropDownBox.h b/Source/UI/Lists/UIDropDownBox.h
index 016a494cd..5decd3bda 100644
--- a/Source/UI/Lists/UIDropDownBox.h
+++ b/Source/UI/Lists/UIDropDownBox.h
@@ -12,7 +12,7 @@ public:
   void Detach();
   bool HasChild(const UIWindow* window) const;
   bool HasOwnerChild(const UIWindow* window) const;
-  void Attach(UIWindow* owner, UIWindow* child);
+  __declspec(noinline) void Attach(UIWindow* owner, UIWindow* child);
 
   /* 0080 */ UIWindow* owner;
 };