diff --git a/docs/device_registry_index.md b/docs/device_registry_index.md
index a47d13d5..3ee06835 100644
--- a/docs/device_registry_index.md
+++ b/docs/device_registry_index.md
@@ -70,7 +70,7 @@ from homeassistant.helpers import device_registry as dr
 device_registry = await dr.async_get_registry(hass)
 
 device_registry.async_get_or_create(
-    config_entry=entry.entry_id,
+    config_entry_id=entry.entry_id,
     connections={
         (dr.CONNECTION_NETWORK_MAC, config.mac)
     },