diff --git a/packages/google-cloud-service-management/google/cloud/servicemanagement_v1/services/service_manager/transports/rest.py b/packages/google-cloud-service-management/google/cloud/servicemanagement_v1/services/service_manager/transports/rest.py
index 8cd189bc88dd..2bc19f0e2699 100644
--- a/packages/google-cloud-service-management/google/cloud/servicemanagement_v1/services/service_manager/transports/rest.py
+++ b/packages/google-cloud-service-management/google/cloud/servicemanagement_v1/services/service_manager/transports/rest.py
@@ -589,7 +589,14 @@ def operations_client(self) -> operations_v1.AbstractOperationsClient:
         """
         # Only create a new client if we do not already have one.
         if self._operations_client is None:
-            http_options: Dict[str, List[Dict[str, str]]] = {}
+            http_options: Dict[str, List[Dict[str, str]]] = {
+                "google.longrunning.Operations.ListOperations": [
+                    {
+                        "method": "get",
+                        "uri": "/v1/operations",
+                    },
+                ],
+            }
 
             rest_transport = operations_v1.OperationsRestTransport(
                 host=self._host,