diff --git a/docs/source/conf.py b/docs/source/conf.py
index 45411969..5f8d3632 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -17,7 +17,7 @@ extensions = [
     'sphinx.ext.autodoc',
     'sphinx.ext.intersphinx',
     'sphinx.ext.napoleon',
-    'autodoc-traits',
+    'autodoc_traits',
     'sphinx_copybutton',
 ]