diff --git a/homeassistant/components/syncthru/__init__.py b/homeassistant/components/syncthru/__init__.py
index a891bc50831..792267791eb 100644
--- a/homeassistant/components/syncthru/__init__.py
+++ b/homeassistant/components/syncthru/__init__.py
@@ -67,6 +67,7 @@ async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     device_registry = dr.async_get(hass)
     device_registry.async_get_or_create(
         config_entry_id=entry.entry_id,
+        configuration_url=printer.url,
         connections=device_connections(printer),
         identifiers=device_identifiers(printer),
         model=printer.model(),