diff --git a/os_api_ref/tests/base.py b/os_api_ref/tests/base.py
index 6e5e0dc..f5c2c1d 100644
--- a/os_api_ref/tests/base.py
+++ b/os_api_ref/tests/base.py
@@ -16,10 +16,11 @@
 import os
 
 import fixtures
+import shutil
 import tempfile
 import testtools
 
-from sphinx.testing.path import path
+from pathlib import Path
 from sphinx.testing.util import SphinxTestApp
 
 
@@ -33,17 +34,16 @@ _TRUE_VALUES = ('True', 'true', '1', 'yes')
 class with_app:
     def __init__(self, **kwargs):
         if 'srcdir' in kwargs:
-            self.srcdir = path(kwargs['srcdir'])
+            self.srcdir = Path(kwargs['srcdir'])
         self.sphinx_app_args = kwargs
 
     def __call__(self, f):
         def newf(*args, **kwargs):
             with tempfile.TemporaryDirectory() as tmpdirname:
-                tmpdir = path(tmpdirname)
-                tmproot = tmpdir / self.srcdir.basename()
-                self.srcdir.copytree(tmproot)
+                tmpdir = Path(tmpdirname)
+                tmproot = tmpdir / self.srcdir.name
+                shutil.copytree(self.srcdir, tmproot)
                 self.sphinx_app_args['srcdir'] = tmproot
-                self.builddir = tmproot.joinpath('_build')
 
                 app = SphinxTestApp(freshenv=True, **self.sphinx_app_args)