diff --git a/study/debug/tools/systemtap/README.md b/study/debug/tools/systemtap/README.md
index 91d8c9f..fb1b2df 100644
--- a/study/debug/tools/systemtap/README.md
+++ b/study/debug/tools/systemtap/README.md
@@ -18,4 +18,6 @@ http://www.ibm.com/developerworks/cn/linux/l-cn-systemtap3/
 [Debian Systemtap Package](https://packages.qa.debian.org/s/systemtap.html)
 
 [使用systemtap调试Linux内核](http://www.tuicool.com/articles/a6fYnyY)
-http://www.aikaiyuan.com/8862.html
\ No newline at end of file
+http://www.aikaiyuan.com/8862.html
+
+[centos7 systemtap 介绍](http://www.fx114.net/qa-131-159851.aspx)
\ No newline at end of file