diff --git a/imageroot/update-module.d/11update_network_env b/imageroot/update-module.d/11update_network_env
new file mode 100644
index 0000000..d271d22
--- /dev/null
+++ b/imageroot/update-module.d/11update_network_env
@@ -0,0 +1,15 @@
+#!/usr/bin/env python3
+
+#
+# Copyright (C) 2025 Nethesis S.r.l.
+# SPDX-License-Identifier: GPL-3.0-or-later
+#
+
+# Set PUBLIC_ENDPOINTS if not already set
+
+import agent
+
+network = agent.read_envfile('network.env')
+if 'PUBLIC_ENDPOINTS' not in network:
+    network['PUBLIC_ENDPOINTS'] = '/api/units/register'
+    agent.write_envfile('network.env', network)