diff --git a/homeassistant/components/google_assistant/__init__.py b/homeassistant/components/google_assistant/__init__.py
index 638ccfd9133..644179858a3 100644
--- a/homeassistant/components/google_assistant/__init__.py
+++ b/homeassistant/components/google_assistant/__init__.py
@@ -11,7 +11,7 @@ from homeassistant.core import HomeAssistant, ServiceCall
 from homeassistant.helpers import config_validation as cv, device_registry as dr
 from homeassistant.helpers.typing import ConfigType
 
-from .const import (
+from .const import (  # noqa: F401
     CONF_ALIASES,
     CONF_CLIENT_EMAIL,
     CONF_ENTITY_CONFIG,
@@ -29,6 +29,7 @@ from .const import (
     DEFAULT_EXPOSED_DOMAINS,
     DOMAIN,
     SERVICE_REQUEST_SYNC,
+    SOURCE_CLOUD,
 )
 from .const import EVENT_QUERY_RECEIVED  # noqa: F401
 from .http import GoogleAssistantView, GoogleConfig