diff --git a/google/generativeai/client.py b/google/generativeai/client.py
index 01d0a003b..ad4acb794 100644
--- a/google/generativeai/client.py
+++ b/google/generativeai/client.py
@@ -220,9 +220,13 @@ def make_client(self, name):
             )
             raise e
 
+        return _add_metadata_wrapper(client)
+            
+
+    def _add_metadata_wrapper(self, client):
         if not self.default_metadata:
             return client
-
+        
         def keep(name, f):
             if name.startswith("_"):
                 return False
@@ -269,6 +273,7 @@ def get_default_operations_client(self) -> operations_v1.OperationsClient:
         if client is None:
             model_client = self.get_default_client("Model")
             client = model_client._transport.operations_client
+            client = self._add_metadata_wrapper(client)
             self.clients["operations"] = client
         return client