diff --git a/netconf/nc_rpc/base/discard_changes.py b/netconf/nc_rpc/base/discard_changes.py
index c41d32e..57bdfed 100644
--- a/netconf/nc_rpc/base/discard_changes.py
+++ b/netconf/nc_rpc/base/discard_changes.py
@@ -23,8 +23,9 @@
 
 class DiscardChanges(Rpc):
 
-	def __init__(self, rpc_request, rpc_method, session):
-		super(DiscardChanges, self).__init__(rpc_request, rpc_method, session)
+	def __init__(self, rpc_request, rpc_method, grpc_client, session):
+		super(DiscardChanges, self).__init__(rpc_request, rpc_method,
+											 grpc_client, session)
 		self._validate_parameters()
 
 	def execute(self):