diff --git a/tests/roots/test-doctest/conf.py b/tests/roots/test-ext-doctest/conf.py
similarity index 100%
rename from tests/roots/test-doctest/conf.py
rename to tests/roots/test-ext-doctest/conf.py
diff --git a/tests/roots/test-doctest/doctest.txt b/tests/roots/test-ext-doctest/doctest.txt
similarity index 100%
rename from tests/roots/test-doctest/doctest.txt
rename to tests/roots/test-ext-doctest/doctest.txt
diff --git a/tests/test_ext_doctest.py b/tests/test_ext_doctest.py
index 705f6262a..fa3ad6bc4 100644
--- a/tests/test_ext_doctest.py
+++ b/tests/test_ext_doctest.py
@@ -14,7 +14,7 @@ from sphinx.ext.doctest import compare_version
 cleanup_called = 0
 
 
-@pytest.mark.sphinx('doctest', testroot='doctest')
+@pytest.mark.sphinx('doctest', testroot='ext-doctest')
 def test_build(app, status, warning):
     global cleanup_called
     cleanup_called = 0