diff --git a/starlink_grpc.py b/starlink_grpc.py
index 9f3726c..3379e01 100644
--- a/starlink_grpc.py
+++ b/starlink_grpc.py
@@ -568,7 +568,7 @@ def get_status(context: Optional[ChannelContext] = None):
     return call_with_channel(grpc_call, context=context)
 
 
-def get_id(context: Optional[ChannelContext] = None):
+def get_id(context: Optional[ChannelContext] = None) -> str:
     """Return the ID from the dish status information.
 
     Args: