diff --git a/HISTORY b/HISTORY
index 0d408ee..b1f5e7d 100644
--- a/HISTORY
+++ b/HISTORY
@@ -1,7 +1,9 @@
 
-Version 5.10  2017-02-17
+Version 5.10  2017-03-08
  * use fc_safe_read instead of read, and fc_safe_write instead of write
    you must upgrade libfastcommon to V1.35 or later
+ * fix getFileContentEx read bytes,
+   you must upgrade libfastcommon to V1.36 or later
 
 Version 5.09  2016-12-29
  * bug fixed: list_all_groups expand buffer auto for so many groups
diff --git a/fastdfs.spec b/fastdfs.spec
index 115a693..3016cce 100644
--- a/fastdfs.spec
+++ b/fastdfs.spec
@@ -17,13 +17,13 @@ Source: http://perso.orange.fr/sebastien.godard/%{name}-%{version}.tar.gz
 BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n) 
 
 Requires: %__cp %__mv %__chmod %__grep %__mkdir %__install %__id
-BuildRequires: libfastcommon-devel >= 1.0.35
+BuildRequires: libfastcommon-devel >= 1.0.36
 
 %description
 This package provides tracker & storage of fastdfs
 
 %package -n %{FDFSServer}
-Requires: libfastcommon >= 1.0.35
+Requires: libfastcommon >= 1.0.36
 Summary: fastdfs tracker & storage
 
 %package -n %{FDFSTool}
diff --git a/tracker/tracker_service.c b/tracker/tracker_service.c
index 2694728..ef63d15 100644
--- a/tracker/tracker_service.c
+++ b/tracker/tracker_service.c
@@ -1992,7 +1992,7 @@ static int tracker_deal_get_one_sys_file(struct fast_task_info *pTask)
 	long2buff(file_stat.st_size, p);
 	p += FDFS_PROTO_PKG_LEN_SIZE;
 
-	bytes = read_bytes;
+	bytes = read_bytes + 1;
 	if (read_bytes > 0 && (result=getFileContentEx(full_filename, \
 					p, offset, &bytes)) != 0)
 	{