diff --git a/debugger/stack.c b/debugger/stack.c
index 62f9b43..46a2d1d 100644
--- a/debugger/stack.c
+++ b/debugger/stack.c
@@ -7,10 +7,13 @@
  */
 
 #include "config.h"
+
 #include <stdio.h>
 #include <stdlib.h>
+
 #include "debugger.h"
 #include "stackframe.h"
+#include "winbase.h"
 
 #ifdef __i386__
 /*