diff --git a/netconf/nc_rpc/base/unlock.py b/netconf/nc_rpc/base/unlock.py
index b5db7c1..e2bc8e8 100644
--- a/netconf/nc_rpc/base/unlock.py
+++ b/netconf/nc_rpc/base/unlock.py
@@ -24,7 +24,8 @@
 class UnLock(Rpc):
 
 	def __init__(self, request, request_xml, grpc_client, session, capabilities):
-		super(UnLock, self).__init__(request, request_xml, grpc_client, session)
+		super(UnLock, self).__init__(request, request_xml, grpc_client,
+									 session, capabilities)
 		self._validate_parameters()
 
 	def execute(self):