diff --git a/setup.py b/setup.py
index b4b6515c..a33f46c2 100644
--- a/setup.py
+++ b/setup.py
@@ -41,7 +41,7 @@
         testing=['nose', 'nose-cov', 'sklearn', 'coverage', 'coveralls', 'python-coveralls'],
         docs=[
             'Sphinx', 'numpydoc', 'sphinx_autodoc_annotation', 'sphinx_rtd_theme',
-            'bibtex-pygments-lexer'
+            'bibtex-pygments-lexer', 'matplotlib'
         ]
     ),
     license='LGPLv3'
diff --git a/sphinx/conf.py b/sphinx/conf.py
index c375d5ee..b5422edd 100644
--- a/sphinx/conf.py
+++ b/sphinx/conf.py
@@ -35,8 +35,7 @@
     'sphinx.ext.intersphinx', 'sphinx.ext.autodoc', 'sphinx.ext.doctest', 'sphinx.ext.mathjax',
     'sphinx.ext.autosummary', 'sphinx.ext.viewcode', 'sphinx.ext.graphviz',
     'sphinx.ext.inheritance_diagram', 'sphinx_autodoc_annotation',
-    'matplotlib.sphinxext.only_directives', 'matplotlib.sphinxext.plot_directive',
-    'sphinx.ext.autodoc', 'sphinx.ext.doctest', 'numpydoc'
+    'matplotlib.sphinxext.plot_directive', 'sphinx.ext.autodoc', 'sphinx.ext.doctest', 'numpydoc'
 ]
 
 intersphinx_mapping = {