diff --git a/plinth/modules/cockpit/__init__.py b/plinth/modules/cockpit/__init__.py
index de9ae7585..ee08955d7 100644
--- a/plinth/modules/cockpit/__init__.py
+++ b/plinth/modules/cockpit/__init__.py
@@ -28,7 +28,7 @@ from plinth.daemon import Daemon
 from plinth.modules import names
 from plinth.modules.apache.components import Webserver
 from plinth.modules.firewall.components import Firewall
-from plinth.signals import domain_added, domain_removed, domainname_change
+from plinth.signals import domain_added, domain_removed
 from plinth.utils import format_lazy
 
 from .manifest import backup, clients  # noqa, pylint: disable=unused-import
@@ -104,7 +104,6 @@ def init():
 
     domain_added.connect(on_domain_added)
     domain_removed.connect(on_domain_removed)
-    domainname_change.connect(on_domainname_change)
 
 
 def setup(helper, old_version=None):
@@ -140,11 +139,3 @@ def on_domain_removed(sender, domain_type, name, **kwargs):
     setup_helper = globals()['setup_helper']
     if setup_helper.get_state() != 'needs-setup':
         actions.superuser_run('cockpit', ['remove-domain', name])
-
-
-def on_domainname_change(sender, old_domainname, new_domainname, **kwargs):
-    """Handle change of a domain."""
-    setup_helper = globals()['setup_helper']
-    if setup_helper.get_state() != 'needs-setup':
-        actions.superuser_run('cockpit', ['remove-domain', old_domainname])
-        actions.superuser_run('cockpit', ['add-domain', new_domainname])