diff --git a/config.scm b/config.scm
index 11ce960..9d03b85 100644
--- a/config.scm
+++ b/config.scm
@@ -40,11 +40,11 @@
    (targets
     '("/boot/efi"))
    (keyboard-layout keyboard-layout)))
- (call-with-input-file "/etc/config.scm"
-     (lambda (port)
-       (read port)
-       (read port)
-       (last-pair (read-port))))
+ (file-systems #~(call-with-input-file "/etc/config.scm"
+                   (lambda (port)
+                     (read port)
+                     (read port)
+                     (cdr (last-pair (read port))))))
  #;(file-systems
   (cons*
    (file-system