diff --git a/gnu/packages/xorg.scm b/gnu/packages/xorg.scm
index d4da5d7098..c6d1946220 100644
--- a/gnu/packages/xorg.scm
+++ b/gnu/packages/xorg.scm
@@ -1,6 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2013, 2014 Andreas Enge <andreas@enge.fr>
-;;; Copyright © 2014, 2015 Mark H Weaver <mhw@netris.org>
+;;; Copyright © 2014, 2015, 2017 Mark H Weaver <mhw@netris.org>
 ;;; Copyright © 2014, 2015 Eric Bavier <bavier@member.fsf.org>
 ;;; Copyright © 2015, 2016, 2017 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2015 Eric Dvorsak <eric@dvorsak.fr>
@@ -2849,7 +2849,8 @@ X server.")
                                     (string-prefix? "x86_64-" system)))
                %supported-systems))
       (arguments
-       '(#:phases (modify-phases %standard-phases
+       '(#:configure-flags '("--with-default-accel=uxa")
+         #:phases (modify-phases %standard-phases
                     (add-after 'unpack 'bootstrap
                       (lambda _
                         (zero? (system* "autoreconf" "-vfi")))))))