diff --git a/netconf/nc_rpc/base/lock.py b/netconf/nc_rpc/base/lock.py
index 2f0130d..2f41e24 100644
--- a/netconf/nc_rpc/base/lock.py
+++ b/netconf/nc_rpc/base/lock.py
@@ -23,9 +23,8 @@
 
 class Lock(Rpc):
 
-	def __init__(self, rpc_request, rpc_method, grpc_client, session):
-		super(Lock, self).__init__(rpc_request, rpc_method, grpc_client,
-								   session)
+	def __init__(self, request, grpc_client, session):
+		super(Lock, self).__init__(request, grpc_client, session)
 		self._validate_parameters()
 
 	def execute(self):