diff --git a/tox.ini b/tox.ini
index a5dec3fdc5a..4be692fc7f8 100644
--- a/tox.ini
+++ b/tox.ini
@@ -118,11 +118,13 @@ commands=
 basepython = python
 usedevelop=True
 skipsdist=True
+# ensure the given pyargs cant mean anytrhing else
+changedir=doc/
 deps=
     PyYAML
 commands=
-    pytest -rfsxX doc/en
-    pytest --doctest-modules {toxinidir}/_pytest
+    pytest -rfsxX en
+    pytest --doctest-modules --pyargs _pytest
 
 [testenv:regen]
 changedir=doc/en