diff --git a/doc/conf.py b/doc/conf.py
index 8155d7b78c2595bde4bfe788f12b6e7e764b7b87..0c06a74514027dd470f94a4ac683fec4e3dab715 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -25,7 +25,7 @@ extensions = [
     'sphinx.ext.intersphinx',
     'sphinx.ext.napoleon',
     'sphinx.ext.viewcode',
-    #'matplotlib.sphinxext.plot_directive'
+    'matplotlib.sphinxext.plot_directive'
     ]
 
 import sphinx