diff --git a/aiohasupervisor/models/supervisor.py b/aiohasupervisor/models/supervisor.py
index 0e80d58..45344ff 100644
--- a/aiohasupervisor/models/supervisor.py
+++ b/aiohasupervisor/models/supervisor.py
@@ -28,6 +28,7 @@ class FeatureFlag(StrEnum):
     """
 
     SUPERVISOR_V2_API = "supervisor_v2_api"
+    UNIX_SOCKET_CORE_API = "unix_socket_core_api"
 
 
 # --- OBJECTS ----