diff --git a/user_guide_src/source/changelog.rst b/user_guide_src/source/changelog.rst
index 5337460..2f525b1 100644
--- a/user_guide_src/source/changelog.rst
+++ b/user_guide_src/source/changelog.rst
@@ -158,6 +158,7 @@
 Bug fixes for 2.1.1
 -------------------
 
+-  Fixed a bug (#64) - Regular expression in DB_active_rec.php failed to handle queries containing SQL bracket delimiters in the join condition.
 -  Fixed a bug (#697) - A wrong array key was used in the Upload library to check for mime-types.
 -  Fixed a bug - form_open() compared $action against site_url() instead of base_url().
 -  Fixed a bug - CI_Upload::_file_mime_type() could've failed if mime_content_type() is used for the detection and returns FALSE.