diff --git a/homeassistant/components/ambient_station/__init__.py b/homeassistant/components/ambient_station/__init__.py
index 4464992e5fa..16b86a0e298 100644
--- a/homeassistant/components/ambient_station/__init__.py
+++ b/homeassistant/components/ambient_station/__init__.py
@@ -263,7 +263,8 @@ async def async_setup_entry(hass, config_entry):
             Client(
                 config_entry.data[CONF_API_KEY],
                 config_entry.data[CONF_APP_KEY], session),
-            hass.data[DOMAIN][DATA_CONFIG].get(CONF_MONITORED_CONDITIONS, []))
+            hass.data[DOMAIN].get(DATA_CONFIG, {}).get(
+                CONF_MONITORED_CONDITIONS, []))
         hass.loop.create_task(ambient.ws_connect())
         hass.data[DOMAIN][DATA_CLIENT][config_entry.entry_id] = ambient
     except WebsocketError as err: