diff --git a/plinth/modules/dynamicdns/__init__.py b/plinth/modules/dynamicdns/__init__.py
index 3d0c46f13..5755bce47 100644
--- a/plinth/modules/dynamicdns/__init__.py
+++ b/plinth/modules/dynamicdns/__init__.py
@@ -31,6 +31,8 @@ from .manifest import backup
 
 version = 1
 
+is_essential = True
+
 managed_packages = ['ez-ipupdate']
 
 name = _('Dynamic DNS Client')