--- a/src/thread_win32.cpp	Tue Apr 01 13:40:36 2008 +0000
+++ b/src/thread_win32.cpp	Tue Apr 01 13:45:04 2008 +0000
@@ -65,12 +65,14 @@
  * Win32 thread version for ThreadObject.
  */
 class ThreadObject_Win32 : public ThreadObject {
+private:
 	uint     m_id_thr;
 	HANDLE   m_h_thr;
 	OTTDThreadFunc m_proc;
 	void     *m_param;
 	bool     m_attached;
 
+public:
 	/**
 	 * Create a win32 thread and start it, calling proc(param).
 	 */