diff --git a/environment/1_sdk/cmg_base/service_discovery.py b/environment/1_sdk/cmg_base/service_discovery.py
index 2abb99034da56acf444f294d0bdfce812b9493c1..771f412eafcb036f91e95e640cd5ba2e3041b051 100644
--- a/environment/1_sdk/cmg_base/service_discovery.py
+++ b/environment/1_sdk/cmg_base/service_discovery.py
@@ -129,10 +129,10 @@ def dispatch_service_discovery(url: str, **kwargs) -> ServiceDiscovery:
                     f"Proto '{cmg_url.proto}' not exists in Cmg-base"
                     "-ServiceDiscovery."
                 ) from exc
-    service_registry_instance = ServiceDiscovery.proto_dict[cmg_url.proto](
+    service_discovery_instance = ServiceDiscovery.proto_dict[cmg_url.proto](
         cmg_url, **kwargs)
     logger.info(
         f"Cmg-base-ServiceDiscovery dispatch one ServiceDiscovery instance "
         f"success. proto={cmg_url.proto}, url={url}"
     )
-    return service_registry_instance
+    return service_discovery_instance