diff --git a/netconf/nc_rpc/base/validate.py b/netconf/nc_rpc/base/validate.py
index 61e2f80..309c00e 100644
--- a/netconf/nc_rpc/base/validate.py
+++ b/netconf/nc_rpc/base/validate.py
@@ -24,7 +24,7 @@
 class Validate(Rpc):
 
 	def __init__(self, request, request_xml, grpc_client, session, capabilities):
-		super(Validate, self).__init__(request, grpc_client, session)
+		super(Validate, self).__init__(request, grpc_client, session, capabilities)
 		self._validate_parameters()
 
 	def execute(self):