diff --git a/doc/conf.py b/doc/conf.py
index 66a7777..a919b44 100755
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -208,6 +208,7 @@ def __bases__(self):
     'sphinx.ext.autosummary',
     'sphinx.ext.doctest',
     'sphinx.ext.napoleon',
+    'sphinx.ext.imgconverter',
     'linksourcecode',
     'extlinks_fancy',
     'sphinx_gallery.gen_gallery',