diff --git a/NEWS b/NEWS
index a0f3a9e98..bea090b6d 100644
--- a/NEWS
+++ b/NEWS
@@ -468,6 +468,13 @@ chapter in the reference manual.
 
 There is no replacement for undefine.
 
+** (ice-9 popen) duplicate pipe fd fix
+
+open-pipe, open-input-pipe and open-output-pipe left an extra copy of
+their pipe file descriptor in the child, which was normally harmless,
+but it can prevent the parent seeing eof or a broken pipe immediately
+and has now been fixed.
+
 ** source-properties and set-source-properties! fix
 
 Properties set with set-source-properties! can now be read back