diff --git a/plinth/modules/apache/__init__.py b/plinth/modules/apache/__init__.py
index 114076c70..b093c5c59 100644
--- a/plinth/modules/apache/__init__.py
+++ b/plinth/modules/apache/__init__.py
@@ -66,6 +66,7 @@ def setup(helper, old_version=None):
     actions.superuser_run(
         'apache',
         ['setup', '--old-version', str(old_version)])
+    helper.call('post', app.enable)
 
 
 # (U)ser (W)eb (S)ites
diff --git a/plinth/modules/avahi/__init__.py b/plinth/modules/avahi/__init__.py
index 82931f1c8..076dfe8c5 100644
--- a/plinth/modules/avahi/__init__.py
+++ b/plinth/modules/avahi/__init__.py
@@ -98,6 +98,7 @@ def setup(helper, old_version=None):
     # available and require restart.
     helper.call('post', actions.superuser_run, 'service',
                 ['reload', 'avahi-daemon'])
+    helper.call('post', app.enable)
 
 
 def on_post_hostname_change(sender, old_hostname, new_hostname, **kwargs):
diff --git a/plinth/modules/ssh/__init__.py b/plinth/modules/ssh/__init__.py
index 1281bfeb5..7010bb962 100644
--- a/plinth/modules/ssh/__init__.py
+++ b/plinth/modules/ssh/__init__.py
@@ -68,6 +68,7 @@ class SSHApp(app_module.App):
 def setup(helper, old_version=None):
     """Configure the module."""
     actions.superuser_run('ssh', ['setup'])
+    helper.call('post', app.enable)
 
 
 def get_host_keys():