diff --git a/.emacs.d/lisp/init-sly.el b/.emacs.d/lisp/init-sly.el
index d86beaa0..1549e568 100644
--- a/.emacs.d/lisp/init-sly.el
+++ b/.emacs.d/lisp/init-sly.el
@@ -27,7 +27,8 @@ This dump is expected to be generated by `lisp-repl-core-dumper'."
 (setq sly-lisp-implementations
       (let* ((maybe-core-dumper (when-let ((exec (executable-find "lisp-repl-core-dumper")))
                                   (list exec)))
-             (nyxt-ad-hoc-deps '("git"  ; For vcs-mode.
+             (nyxt-ad-hoc-deps '("emacs" ; For external editor editing.
+                                 "git"  ; For vcs-mode.
                                  "gnupg" ;
                                  "guix"  ; For OSPM.
                                  "password-store"