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-rw-r--r--keystone/config.py1
1 files changed, 1 insertions, 0 deletions
diff --git a/keystone/config.py b/keystone/config.py
index 2d69d7a6..5062927a 100644
--- a/keystone/config.py
+++ b/keystone/config.py
@@ -15,6 +15,7 @@ class ConfigMixin(object):
def __call__(self, config_files=None, *args, **kw):
if config_files is not None:
self._opts['config_file']['opt'].default = config_files
+ kw.setdefault('args', [])
return super(ConfigMixin, self).__call__(*args, **kw)
def __getitem__(self, key, default=None):