diff --git a/src/python/grpcio_reflection/grpc_reflection/v1alpha/reflection.py b/src/python/grpcio_reflection/grpc_reflection/v1alpha/reflection.py
index c58cb3ecf17f982e036077ccc3947ff057f7b29f..cd896f32c3cdece9bba26882cce5229728c7c3b5 100644
--- a/src/python/grpcio_reflection/grpc_reflection/v1alpha/reflection.py
+++ b/src/python/grpcio_reflection/grpc_reflection/v1alpha/reflection.py
@@ -56,7 +56,7 @@ def _file_descriptor_response(descriptor):
             file_descriptor_proto=(serialized_proto,)),)
 
 
-class ReflectionServicer(reflection_pb2.ServerReflectionServicer):
+class ReflectionServicer(reflection_pb2_grpc.ServerReflectionServicer):
     """Servicer handling RPCs for service statuses."""
 
     def __init__(self, service_names, pool=None):