diff --git a/dlls/cabinet/tests/fdi.c b/dlls/cabinet/tests/fdi.c
index 80f6a3c5716..1f1c6e275d1 100644
--- a/dlls/cabinet/tests/fdi.c
+++ b/dlls/cabinet/tests/fdi.c
@@ -20,6 +20,8 @@
  */
 
 #include <stdio.h>
+#include <fcntl.h>
+#include <sys/stat.h>
 #include <windows.h>
 #include "fci.h"
 #include "fdi.h"
@@ -31,16 +33,6 @@
 
 static CHAR CURR_DIR[MAX_PATH];
 
-/* avoid including CRT headers */
-#ifndef _O_BINARY
-# define _O_BINARY 0x8000
-#endif
-
-#ifndef _S_IREAD
-# define _S_IREAD  0x0100
-# define _S_IWRITE 0x0080
-#endif
-
 #include <pshpack1.h>
 
 struct CFHEADER