diff --git a/emacs/guix-profiles.el b/emacs/guix-profiles.el
index 2c1936864f..43ad1d42eb 100644
--- a/emacs/guix-profiles.el
+++ b/emacs/guix-profiles.el
@@ -1,6 +1,7 @@
 ;;; guix-profiles.el --- Guix profiles
 
-;; Copyright © 2014 Alex Kost <alezost@gmail.com>
+;; Copyright © 2014, 2015, 2016 Alex Kost <alezost@gmail.com>
+;; Copyright © 2015 Mathieu Lirzin <mthl@openmailbox.org>
 
 ;; This file is part of GNU Guix.
 
@@ -25,6 +26,10 @@
   (expand-file-name "~/.guix-profile")
   "User profile.")
 
+(defvar guix-system-profile
+  (concat guix-config-state-directory "/profiles/system")
+  "System profile.")
+
 (defvar guix-default-profile
   (concat guix-config-state-directory
           "/profiles/per-user/"