diff --git a/numpydoc/numpydoc.py b/numpydoc/numpydoc.py
index 763c022d..adbdc5fd 100644
--- a/numpydoc/numpydoc.py
+++ b/numpydoc/numpydoc.py
@@ -176,6 +176,8 @@ def setup(app, get_doc_object_=get_doc_object):
     global get_doc_object
     get_doc_object = get_doc_object_
 
+    app.setup_extension('sphinx.ext.autosummary')
+
     app.connect('autodoc-process-docstring', mangle_docstrings)
     app.connect('autodoc-process-signature', mangle_signature)
     app.connect('doctree-read', relabel_references)
@@ -191,8 +193,6 @@ def setup(app, get_doc_object_=get_doc_object):
     app.add_domain(NumpyPythonDomain)
     app.add_domain(NumpyCDomain)
 
-    app.setup_extension('sphinx.ext.autosummary')
-
     metadata = {'version': __version__,
                 'parallel_read_safe': True}
     return metadata