diff --git a/nixos/doc/manual/release-notes/rl-1709.xml b/nixos/doc/manual/release-notes/rl-1709.xml
index e367a08da18d..d9b10efaf597 100644
--- a/nixos/doc/manual/release-notes/rl-1709.xml
+++ b/nixos/doc/manual/release-notes/rl-1709.xml
@@ -4,7 +4,7 @@
          version="5.0"
          xml:id="sec-release-17.09">
 
-<title>Release 17.09 (“Hummingbird”, 2017/09/??)</title>
+<title>Release 17.09 (“Hummingbird”, 2017/09/29)</title>
 
 <section xmlns="http://docbook.org/ns/docbook"
          xmlns:xlink="http://www.w3.org/1999/xlink"