diff --git a/core/prelude-packages.el b/core/prelude-packages.el
index 0f098f5..329d6e9 100644
--- a/core/prelude-packages.el
+++ b/core/prelude-packages.el
@@ -43,7 +43,7 @@
 (setq url-http-attempt-keepalives nil)
 
 (defvar prelude-packages
-  '(ack-and-a-half exec-path-from-shell expand-region gist guru-mode helm helm-projectile magit magithub melpa
+  '(ack-and-a-half elisp-slime-nav exec-path-from-shell expand-region gist guru-mode helm helm-projectile magit magithub melpa
                    rainbow-mode volatile-highlights yasnippet solarized-theme zenburn-theme)
   "A list of packages to ensure are installed at launch.")
 
diff --git a/modules/prelude-emacs-lisp.el b/modules/prelude-emacs-lisp.el
index 26eb999..12486a5 100644
--- a/modules/prelude-emacs-lisp.el
+++ b/modules/prelude-emacs-lisp.el
@@ -47,6 +47,7 @@
   (run-hooks 'prelude-lisp-coding-hook)
   (turn-on-eldoc-mode)
   (prelude-remove-elc-on-save)
+  (elisp-slime-nav-mode +1)
   (rainbow-mode +1))
 
 (setq prelude-emacs-lisp-mode-hook 'prelude-emacs-lisp-mode-defaults)