Update Email library docs
diff --git a/user_guide_src/source/libraries/email.rst b/user_guide_src/source/libraries/email.rst
index e7ed9f7..da3bf26 100644
--- a/user_guide_src/source/libraries/email.rst
+++ b/user_guide_src/source/libraries/email.rst
@@ -97,7 +97,7 @@
**mailtype** text text or html Type of mail. If you send HTML email you must send it as a complete web
page. Make sure you don't have any relative links or relative image
paths otherwise they will not work.
-**charset** utf-8 Character set (utf-8, iso-8859-1, etc.).
+**charset** ``$config['charset']`` Character set (utf-8, iso-8859-1, etc.).
**validate** FALSE TRUE or FALSE (boolean) Whether to validate the email address.
**priority** 3 1, 2, 3, 4, 5 Email Priority. 1 = highest. 5 = lowest. 3 = normal.
**crlf** \\n "\\r\\n" or "\\n" or "\\r" Newline character. (Use "\\r\\n" to comply with RFC 822).