diff --git a/user-config/emacs/.emacs.d/config.org b/user-config/emacs/.emacs.d/config.org
index 896eceb..f7bb869 100644
--- a/user-config/emacs/.emacs.d/config.org
+++ b/user-config/emacs/.emacs.d/config.org
@@ -186,6 +186,18 @@ as a TODO item.
   (load custom-file)
 #+end_src
 
+* Set Language Environment
+
+As of mu4e ~1.12~, ~mu4e-headers~ views do not display correctly without the language
+environment being UTF-8. This cannot be set in a buffer-local way for mu4e buffers, so this
+must be set globally for emacs.
+
+See: https://www.djcbsoftware.nl/code/mu/mu4e/Known-issues.html#UTF_002d8-language-environment-is-required
+
+#+begin_src emacs-lisp
+  (set-language-environment "UTF-8")
+#+end_src
+
 * Setup auth-source Backend
 
 Use password store backend disabling netrc and gpg encrypted netrc options. See [[info:auth#Help for