diff --git a/CHANGES b/CHANGES
index 0aa82cf49..b463bb81f 100644
--- a/CHANGES
+++ b/CHANGES
@@ -17,6 +17,7 @@ Bugs fixed
 ----------
 
 * #4019: inheritance_diagram AttributeError stoping make process
+* #4531: autosummary: methods are not treated as attributes
 
 Testing
 --------
diff --git a/sphinx/ext/autosummary/generate.py b/sphinx/ext/autosummary/generate.py
index d9cb7b5df..2818ab3c7 100644
--- a/sphinx/ext/autosummary/generate.py
+++ b/sphinx/ext/autosummary/generate.py
@@ -229,7 +229,7 @@ def generate_autosummary_docs(sources, output_dir=None, suffix='.rst',
         generate_autosummary_docs(new_files, output_dir=output_dir,
                                   suffix=suffix, warn=warn, info=info,
                                   base_path=base_path, builder=builder,
-                                  template_dir=template_dir)
+                                  template_dir=template_dir, app=app)
 
 
 # -- Finding documented entries in files ---------------------------------------