diff --git a/netconf/nc_rpc/base/unlock.py b/netconf/nc_rpc/base/unlock.py
index 78c59f1..f9ef062 100644
--- a/netconf/nc_rpc/base/unlock.py
+++ b/netconf/nc_rpc/base/unlock.py
@@ -23,8 +23,9 @@
 
 class UnLock(Rpc):
 
-	def __init__(self, rpc_request, rpc_method, session):
-		super(UnLock, self).__init__(rpc_request, rpc_method, session)
+	def __init__(self, rpc_request, rpc_method, grpc_client, session):
+		super(UnLock, self).__init__(rpc_request, rpc_method, grpc_client,
+									 session)
 		self._validate_parameters()
 
 	def execute(self):