diff --git a/inst_engine.rc b/inst_engine.rc
index 1e3ce86..1b7b9d6 100644
--- a/inst_engine.rc
+++ b/inst_engine.rc
@@ -7,7 +7,7 @@
 //
 // Generated from the TEXTINCLUDE 2 resource.
 //
-#include <windows.h>
+#include <Windows.h>
 
 /////////////////////////////////////////////////////////////////////////////
 #undef APSTUDIO_READONLY_SYMBOLS