diff --git a/gnu/packages/freedesktop.scm b/gnu/packages/freedesktop.scm
index 63c3a93957..57af63cfc2 100644
--- a/gnu/packages/freedesktop.scm
+++ b/gnu/packages/freedesktop.scm
@@ -524,7 +524,7 @@ (define-public weston
              (string-append "--with-xserver-path="
                             (assoc-ref %build-inputs "xorg-server-xwayland")
                             "/bin/Xwayland"))
-       #:tests? #f ; FIXME: Tests randomly fail.
+       #:parallel-tests? #f ; Parallel tests cause failures.
        #:phases
        (modify-phases %standard-phases
          (add-before 'configure 'use-elogind