diff --git a/homeassistant/components/fibaro/__init__.py b/homeassistant/components/fibaro/__init__.py
index 90b1f0a5425..55b41372faa 100644
--- a/homeassistant/components/fibaro/__init__.py
+++ b/homeassistant/components/fibaro/__init__.py
@@ -406,6 +406,7 @@ async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     device_registry.async_get_or_create(
         config_entry_id=entry.entry_id,
         identifiers={(DOMAIN, controller.hub_serial)},
+        serial_number=controller.hub_serial,
         manufacturer="Fibaro",
         name=controller.hub_name,
         model=controller.hub_serial,