diff --git a/erp5/util/testnode/SlapOSControler.py b/erp5/util/testnode/SlapOSControler.py
index 9db33224f28e4edb838c8b6c05e0863797710707..46c26b28e1f310cc1f1c357544016bde38988cd5 100644
--- a/erp5/util/testnode/SlapOSControler.py
+++ b/erp5/util/testnode/SlapOSControler.py
@@ -33,6 +33,7 @@ import xml_marshaller
 import shutil
 import sys
 import glob
+import argparse
 
 MAX_PARTIONS = 10
 MAX_SR_RETRIES = 3