diff --git a/HISTORY b/HISTORY
index c18d2db..7147b84 100644
--- a/HISTORY
+++ b/HISTORY
@@ -1,8 +1,9 @@
 
-Version 1.14  2015-05-11
+Version 1.14  2015-05-12
   * fast_task_info support set_buffer_size and realloc_buffer
   * use file lock when write logger header
   * bugfixed: sockopt.c correct fsbytes to sbytes in FreeBSD
+  * macro FDFS_WRITE_BUFF_SIZE change to FAST_WRITE_BUFF_SIZE
 
 Version 1.13  2015-02-27
   * support php extension
diff --git a/src/sockopt.c b/src/sockopt.c
index 5397c0b..91636a7 100644
--- a/src/sockopt.c
+++ b/src/sockopt.c
@@ -826,7 +826,7 @@ int tcprecvfile(int sock, const char *filename, const int64_t file_bytes, \
 		int64_t *true_file_bytes)
 {
 	int write_fd;
-	char buff[FDFS_WRITE_BUFF_SIZE];
+	char buff[FAST_WRITE_BUFF_SIZE];
 	int64_t remain_bytes;
 	int recv_bytes;
 	int written_bytes;
@@ -979,7 +979,7 @@ int tcprecvfile_ex(int sock, const char *filename, const int64_t file_bytes, \
 		unsigned int *hash_codes, const int timeout)
 {
 	int fd;
-	char buff[FDFS_WRITE_BUFF_SIZE];
+	char buff[FAST_WRITE_BUFF_SIZE];
 	int64_t remain_bytes;
 	int recv_bytes;
 	int written_bytes;
@@ -1070,7 +1070,7 @@ int tcprecvfile_ex(int sock, const char *filename, const int64_t file_bytes, \
 int tcpdiscard(int sock, const int bytes, const int timeout, \
 		int64_t *total_recv_bytes)
 {
-	char buff[FDFS_WRITE_BUFF_SIZE];
+	char buff[FAST_WRITE_BUFF_SIZE];
 	int remain_bytes;
 	int recv_bytes;
 	int result;
@@ -1267,7 +1267,7 @@ int tcpsendfile_ex(int sock, const char *filename, const int64_t file_offset, \
 #endif
 
 	{
-	char buff[FDFS_WRITE_BUFF_SIZE];
+	char buff[FAST_WRITE_BUFF_SIZE];
 	int64_t remain_bytes;
 	tcpsenddatafunc send_func;
 
diff --git a/src/sockopt.h b/src/sockopt.h
index 6019a66..9f22e4a 100644
--- a/src/sockopt.h
+++ b/src/sockopt.h
@@ -13,7 +13,7 @@
 
 #include "common_define.h"
 
-#define FDFS_WRITE_BUFF_SIZE  256 * 1024
+#define FAST_WRITE_BUFF_SIZE  256 * 1024
 
 #ifdef __cplusplus
 extern "C" {