diff --git a/tests/components/deconz/test_init.py b/tests/components/deconz/test_init.py
index 58cb7129037..fe364779059 100644
--- a/tests/components/deconz/test_init.py
+++ b/tests/components/deconz/test_init.py
@@ -175,6 +175,7 @@ async def test_update_group_unique_id(
             CONF_PORT: "3",
         },
     )
+    entry.add_to_hass(hass)
 
     # Create entity entry to migrate to new unique ID
     entity_registry.async_get_or_create(