diff --git a/CHANGES b/CHANGES
index 9966e415e..698ffa014 100644
--- a/CHANGES
+++ b/CHANGES
@@ -186,7 +186,7 @@ Features added
 * #5924: githubpages: create CNAME file for custom domains when
   :confval:`html_baseurl` set
 * #4261: autosectionlabel: restrict the labeled sections by new config value;
-  :confval:`autosectionlabel_max_depth`
+  :confval:`autosectionlabel_maxdepth`
 
 
 Bugs fixed
diff --git a/sphinx/ext/autosectionlabel.py b/sphinx/ext/autosectionlabel.py
index a3267baf4..35eaa0f34 100644
--- a/sphinx/ext/autosectionlabel.py
+++ b/sphinx/ext/autosectionlabel.py
@@ -44,8 +44,8 @@ def register_sections_as_label(app, document):
     labels = app.env.domaindata['std']['labels']
     anonlabels = app.env.domaindata['std']['anonlabels']
     for node in document.traverse(nodes.section):
-        if (app.config.autosectionlabel_max_depth and
-                get_node_depth(node) > app.config.autosectionlabel_max_depth):
+        if (app.config.autosectionlabel_maxdepth and
+                get_node_depth(node) > app.config.autosectionlabel_maxdepth):
             continue
         labelid = node['ids'][0]
         docname = app.env.docname
@@ -69,7 +69,7 @@ def register_sections_as_label(app, document):
 def setup(app):
     # type: (Sphinx) -> Dict[str, Any]
     app.add_config_value('autosectionlabel_prefix_document', False, 'env')
-    app.add_config_value('autosectionlabel_max_depth', None, 'env')
+    app.add_config_value('autosectionlabel_maxdepth', None, 'env')
     app.connect('doctree-read', register_sections_as_label)
 
     return {
diff --git a/tests/test_ext_autosectionlabel.py b/tests/test_ext_autosectionlabel.py
index cd90c23e8..6dcd9e57b 100644
--- a/tests/test_ext_autosectionlabel.py
+++ b/tests/test_ext_autosectionlabel.py
@@ -71,7 +71,7 @@ def test_autosectionlabel_prefix_document_html(app, status, warning):
 
 
 @pytest.mark.sphinx('html', testroot='ext-autosectionlabel',
-                    confoverrides={'autosectionlabel_max_depth': 2})
-def test_autosectionlabel_max_depth(app, status, warning):
+                    confoverrides={'autosectionlabel_maxdepth': 2})
+def test_autosectionlabel_maxdepth(app, status, warning):
     return test_autosectionlabel_html(app, status, warning,
                                       skipped_labels=True)