diff --git a/docs/extensions/attributetable.py b/docs/extensions/attributetable.py
index 548d87a47..75060866b 100644
--- a/docs/extensions/attributetable.py
+++ b/docs/extensions/attributetable.py
@@ -131,7 +131,7 @@ def process_attributetable(app, doctree, fromdocname):
         for label, subitems in groups.items():
             if not subitems:
                 continue
-            table.append(class_results_to_node(label, subitems))
+            table.append(class_results_to_node(label, sorted(subitems)))
 
         table['python-class'] = fullname