diff --git a/include/winnt.h b/include/winnt.h
index a1428ce..fb430e1 100644
--- a/include/winnt.h
+++ b/include/winnt.h
@@ -342,6 +342,7 @@
 typedef LONG            HRESULT;
 typedef DWORD           LCID,       *PLCID;
 typedef WORD            LANGID;
+typedef DWORD		EXECUTION_STATE;
 
 /* Handle type */