diff --git a/harbour/include/fileio.ch b/harbour/include/fileio.ch
index f15a29d31a..6f0ac52060 100644
--- a/harbour/include/fileio.ch
+++ b/harbour/include/fileio.ch
@@ -78,5 +78,12 @@
 #define HB_DISK_USED  2
 #define HB_DISK_TOTAL 3
 
+#define CD( d )       DIRCHANGE( d )
+#define MD( d )       MAKEDIR( d )
+#define RD( d )       DIRREMOVE( d )
+#define DISKUSED( d ) DISKSPACE( d, HB_DISK_USED )
+#define DISKFREE( d ) DISKSPACE( d, HB_DISK_FREE )
+#define DISKFULL( d ) DISKSPACE( d, HB_DISK_TOTAL )
+
 #endif /* _FILEIO_CH */