diff --git a/doc/en/reference.rst b/doc/en/reference.rst
index 754035d16..9305cbb95 100644
--- a/doc/en/reference.rst
+++ b/doc/en/reference.rst
@@ -724,13 +724,6 @@ MarkGenerator
     :members:
 
 
-MarkInfo
-~~~~~~~~
-
-.. autoclass:: _pytest.mark.MarkInfo
-    :members:
-
-
 Mark
 ~~~~
 
diff --git a/tox.ini b/tox.ini
index 65e40116a..7a69000c8 100644
--- a/tox.ini
+++ b/tox.ini
@@ -121,6 +121,7 @@ setenv=
 setenv = {[testenv:py27-pluggymaster]setenv}
 
 [testenv:docs]
+basepython = python3
 skipsdist = True
 usedevelop = True
 changedir = doc/en