diff --git a/AppleWin/source/Z80VICE/z80.cpp b/AppleWin/source/Z80VICE/z80.cpp
index f3463d99..f68f089a 100644
--- a/AppleWin/source/Z80VICE/z80.cpp
+++ b/AppleWin/source/Z80VICE/z80.cpp
@@ -25,6 +25,8 @@
  */
 
 #include "..\stdafx.h"
+#pragma  hdrstop
+
 #undef IN							// Defined in windef.h
 #undef OUT							// Defined in windef.h