diff --git a/AUTHORS.rst b/AUTHORS.rst
index 33495d6..3a33840 100644
--- a/AUTHORS.rst
+++ b/AUTHORS.rst
@@ -10,6 +10,7 @@ James Oakley <jfunk@funktronics.ca>
 Jannis Leidel <jannis@leidel.info>
 Javier García Sogo <jgsogo@gmail.com>
 Jeff Elmore <jeffelmore.org>
+Keryn Knight <kerynknight.com>
 ivirabyan
 Paul McLanahan <paul@mclanahan.net>
 Rinat Shigapov <rinatshigapov@gmail.com>
diff --git a/CHANGES.rst b/CHANGES.rst
index 0b2998f..9b3bb75 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -4,6 +4,9 @@ CHANGES
 master (unreleased)
 -------------------
 
+* `Choices` now `__contains__` its Python identifier values. Thanks Keryn
+  Knight. (Merge of GH-69).
+
 
 1.4.0 (2013.06.03)
 ------------------