diff --git a/README.md b/README.md
index 5350ead1c..bf90d4df6 100755
--- a/README.md
+++ b/README.md
@@ -340,7 +340,7 @@ Remark:
 
 ## History
 
-* v2.0, 2016-09-01, workaround [bug #511] the fly stfd in close. 2.0.211
+* v2.0, 2016-09-01, workaround [#511][bug #511] the fly stfd in close. 2.0.211
 * v2.0, 2016-08-30, comment the pcr.
 * v2.0, 2016-08-18, fix [srs-librtmp#4](https://github.com/ossrs/srs-librtmp/issues/4) filter frame.
 * v2.0, 2016-08-10, fix socket timeout for librtmp.