diff --git a/user_guide_src/source/changelog.rst b/user_guide_src/source/changelog.rst
index 2d76f81..5a290e7 100644
--- a/user_guide_src/source/changelog.rst
+++ b/user_guide_src/source/changelog.rst
@@ -98,6 +98,7 @@
 -  Fixed a bug in CI_Image_lib::gd_loaded() where it was possible for the script execution to end or a PHP E_WARNING message to be emitted.
 -  In Pagination library, when use_page_numbers=TRUE previous link and page 1 link do not have the same url
 -  Fixed a bug in the Oracle (oci8) instance of :doc:`Database Forge Class <database/forge>` where ``create_table()`` would fail if used with ``AUTO_INCREMENT`` as it's not supported by Oracle.
+-  Fixed a bug (#413) - The Oracle (oci8) database driver only used to return connection-related errors in `_error_message()` and `_error_number()`.
 
 Version 2.1.0
 =============