diff --git a/custom_components/composite/config.py b/custom_components/composite/config.py
index 5ebcb3d..04372aa 100644
--- a/custom_components/composite/config.py
+++ b/custom_components/composite/config.py
@@ -30,6 +30,8 @@
 
 _LOGGER = logging.getLogger(__name__)
 
+PACKAGE_MERGE_HINT = "dict"
+
 CONF_TZ_FINDER = "tz_finder"
 CONF_TZ_FINDER_CLASS = "tz_finder_class"