diff --git a/build-aux/hydra/guix.scm b/build-aux/hydra/guix.scm
index 57041d695fff88d5f8da456e9dba5d9e9c7d5a45..3996a0b422d53f76a4b74c44de35f70a1c364ac7 100644
--- a/build-aux/hydra/guix.scm
+++ b/build-aux/hydra/guix.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2013 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2013, 2014 Ludovic Courtès <ludo@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -29,6 +29,9 @@
   ;; newer, even though they may not correspond.
   (set! %fresh-auto-compile #t)
 
+  ;; Display which files are loaded.
+  (set! %load-verbosely #t)
+
   (and=> (assoc-ref (current-source-location) 'filename)
          (lambda (file)
            (let ((dir (string-append (dirname file) "/../..")))