diff --git a/users/modules/global/emacs.nix b/users/modules/global/emacs.nix
index 69b4a98..fa2306e 100644
--- a/users/modules/global/emacs.nix
+++ b/users/modules/global/emacs.nix
@@ -80,6 +80,7 @@ in
             upquote
             wrapfig
             xstring
+            mleftright
             ;
         })
         biber