diff --git a/components/fatfs/src/ff.c b/components/fatfs/src/ff.c
index ffc5240970..0d7d7366bf 100644
--- a/components/fatfs/src/ff.c
+++ b/components/fatfs/src/ff.c
@@ -18,6 +18,7 @@
 /----------------------------------------------------------------------------*/
 
 
+#define FF_DEFINE_DIR
 #include "ff.h"			/* Declarations of FatFs API */
 #include "diskio.h"		/* Declarations of device I/O functions */
 
diff --git a/components/fatfs/src/ff.h b/components/fatfs/src/ff.h
index 981a88634f..18bc85b1c7 100644
--- a/components/fatfs/src/ff.h
+++ b/components/fatfs/src/ff.h
@@ -32,6 +32,9 @@ extern "C" {
 #error Wrong configuration file (ffconf.h).
 #endif
 
+#ifdef FF_DEFINE_DIR
+#define FF_DIR DIR
+#endif
 
 
 /* Definitions of volume management */
@@ -179,7 +182,7 @@ typedef struct {
 
 
 
-/* Directory object structure (DIR) */
+/* Directory object structure (FF_DIR) */
 
 typedef struct {
 	_FDID	obj;			/* Object identifier */
@@ -194,7 +197,7 @@ typedef struct {
 #if _USE_FIND
 	const TCHAR* pat;		/* Pointer to the name matching pattern */
 #endif
-} DIR;
+} FF_DIR;
 
 
 
@@ -252,11 +255,11 @@ FRESULT f_write (FIL* fp, const void* buff, UINT btw, UINT* bw);	/* Write data t
 FRESULT f_lseek (FIL* fp, FSIZE_t ofs);								/* Move file pointer of the file object */
 FRESULT f_truncate (FIL* fp);										/* Truncate the file */
 FRESULT f_sync (FIL* fp);											/* Flush cached data of the writing file */
-FRESULT f_opendir (DIR* dp, const TCHAR* path);						/* Open a directory */
-FRESULT f_closedir (DIR* dp);										/* Close an open directory */
-FRESULT f_readdir (DIR* dp, FILINFO* fno);							/* Read a directory item */
-FRESULT f_findfirst (DIR* dp, FILINFO* fno, const TCHAR* path, const TCHAR* pattern);	/* Find first file */
-FRESULT f_findnext (DIR* dp, FILINFO* fno);							/* Find next file */
+FRESULT f_opendir (FF_DIR* dp, const TCHAR* path);						/* Open a directory */
+FRESULT f_closedir (FF_DIR* dp);										/* Close an open directory */
+FRESULT f_readdir (FF_DIR* dp, FILINFO* fno);							/* Read a directory item */
+FRESULT f_findfirst (FF_DIR* dp, FILINFO* fno, const TCHAR* path, const TCHAR* pattern);	/* Find first file */
+FRESULT f_findnext (FF_DIR* dp, FILINFO* fno);							/* Find next file */
 FRESULT f_mkdir (const TCHAR* path);								/* Create a sub directory */
 FRESULT f_unlink (const TCHAR* path);								/* Delete an existing file or directory */
 FRESULT f_rename (const TCHAR* path_old, const TCHAR* path_new);	/* Rename/Move a file or directory */