diff --git a/lib-src/lib-widget-extra/NonGuiThread.h b/lib-src/lib-widget-extra/NonGuiThread.h
index d1a56e8c6..c77ac19d0 100644
--- a/lib-src/lib-widget-extra/NonGuiThread.h
+++ b/lib-src/lib-widget-extra/NonGuiThread.h
@@ -16,19 +16,19 @@ typedef void (*tGenericFn)(void);
 //#include "AllCommands.h" // for tGenericFn
 //#include "WidgetExtra.h"
 
-class /*WIDGET_EXTRA_DLL*/ NonGuiThread : public wxThread  
+class /*WIDGET_EXTRA_DLL*/ NonGuiThread : public wxThread
 {
 public:
-	NonGuiThread(tGenericFn pFn);
-	virtual ~NonGuiThread();
+   NonGuiThread(tGenericFn pFn);
+   virtual ~NonGuiThread();
    NonGuiThread::ExitCode Entry();
    static void RunInThread(tGenericFn pFn);
    static NonGuiThread * StartChild( tGenericFn pFn );
 
 public:
-	bool mbExit;
+   bool mbExit;
    tGenericFn mpFn;
-	static bool IsLive;
+   static bool IsLive;
 };
 
 #endif // !defined(AFX_NONGUITHREAD_H__E8F7FC2B_CB13_497B_A556_18551596AFD9__INCLUDED_)