diff --git a/installer.scm b/installer.scm
index 6ef49d4..4032687 100644
--- a/installer.scm
+++ b/installer.scm
@@ -16,9 +16,10 @@
 ;;; along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 ;; Generate a bootable image (e.g. for USB sticks, etc.) with:
-;; $ guix system disk-image nongnu/system/install.scm
+;; $ guix system image -t iso9660 installer.scm
 
 (define-module (nongnu system install)
+  #:use-module (gnu services)
   #:use-module (gnu system)
   #:use-module (gnu system install)
   #:use-module (gnu packages version-control)
@@ -29,6 +30,7 @@
   #:use-module (gnu packages mtools)
   #:use-module (gnu packages package-management)
   #:use-module (nongnu packages linux)
+  #:use-module (guix)
   #:export (installation-os-nonfree))
 
 (define installation-os-nonfree
@@ -42,6 +44,13 @@
     ;; wpa_supplicant when you try to connect to a wifi network.
     (kernel-arguments '("quiet" "modprobe.blacklist=radeon" "net.ifnames=0"))
 
+    (services
+     (cons*
+      ;; Include the channel file so that it can be used during installation
+      (simple-service 'channel-file etc-service-type
+                      (list `("channels.scm" ,(local-file "channels.scm"))))
+      (operating-system-user-services installation-os)))
+
     ;; Add some extra packages useful for the installation process
     (packages
      (append (list git curl stow vim emacs-no-x-toolkit)