diff --git a/doc/conf.py b/doc/conf.py
index f699179b..6173c657 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -40,6 +40,7 @@
     ('py:class', 'pyopencl._cl.Device'),
     ('py:class', 'pyopencl._cl.Kernel'),
     ('py:class', 'QWebView'),
+    ('py:class', 'types.ModuleType'),
     ('py:class', 'unittest.suite.TestSuite'),
     ('py:class', 'wx.Frame'),
     # autodoc and namedtuple is completely broken