diff --git a/gnu/packages/python.scm b/gnu/packages/python.scm
index 6aee72cf70..bed8124b55 100644
--- a/gnu/packages/python.scm
+++ b/gnu/packages/python.scm
@@ -4229,7 +4229,9 @@ a front-end for C compilers or analysis tools.")
      `(("python-cffi" ,python-cffi) ; used at run time
        ("python-six" ,python-six)))
     (arguments
-     `(#:phases
+     `(;; FIXME: Tests cannot load libxcb.so.1
+       #:tests? #f
+       #:phases
        (modify-phases %standard-phases
          (add-after 'install 'install-doc
            (lambda* (#:key outputs #:allow-other-keys)