diff --git a/reactos/include/dxsdk/errors.h b/reactos/include/dxsdk/errors.h
index 829dbf2aabe..21f91833002 100644
--- a/reactos/include/dxsdk/errors.h
+++ b/reactos/include/dxsdk/errors.h
@@ -15,7 +15,7 @@ extern "C" {
 #define VFW_FIRST_CODE   0x200
 #define MAX_ERROR_TEXT_LEN 160
 
-#include <VFWMSGS.H>
+#include <vfwmsgs.h>
 
 typedef BOOL (WINAPI* AMGETERRORTEXTPROCA)(HRESULT, char *, DWORD);
 typedef BOOL (WINAPI* AMGETERRORTEXTPROCW)(HRESULT, WCHAR *, DWORD);