diff --git a/winsup/cygwin/release/3.1.0 b/winsup/cygwin/release/3.1.0
index 72664abdc..03bbc7aba 100644
--- a/winsup/cygwin/release/3.1.0
+++ b/winsup/cygwin/release/3.1.0
@@ -79,3 +79,6 @@ Bug Fixes
 - 64 bit only: Avoid collisions between memory maps created with shmat
   and Windows datastructures during fork.
   Addresses: https://cygwin.com/ml/cygwin/2019-08/msg00107.html
+
+- Make rmdir fail if its argument is a symlink.
+  Addresses: https://cygwin.com/ml/cygwin/2019-09/msg00221.html