diff --git a/docs/source/conf.py b/docs/source/conf.py
index e078321e..e7290900 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -245,3 +245,7 @@ texinfo_documents = [
 # -- Options for todo module ---------------------------------------------------
 
 todo_include_todos = False
+
+# -- Options for autodoc module ------------------------------------------------
+
+autodoc_default_flags = ['members', 'undoc-members']
diff --git a/docs/source/plugin-api.rst b/docs/source/plugin-api.rst
index 75b31bd1..b19660c1 100644
--- a/docs/source/plugin-api.rst
+++ b/docs/source/plugin-api.rst
@@ -17,21 +17,22 @@ Main class
 .. module:: api
 
 .. autoclass:: Script
-    :members:
 
 API Classes
 ~~~~~~~~~~~
 
 .. module:: api_classes
 
+.. autoclass:: BaseDefinition
+
 .. autoclass:: Completion
-    :members:
+    :show-inheritance:
 
 .. autoclass:: Definition
-    :members:
+    :show-inheritance:
 
 .. autoclass:: RelatedName
-    :members:
+    :show-inheritance:
 
 Exceptions
 ~~~~~~~~~~