fix
diff --git a/setup.py b/setup.py
index d23ea68..8770532 100755
--- a/setup.py
+++ b/setup.py
@@ -44,7 +44,7 @@
           'networkx',
           'six>=1.9',
           'ryu',
-          'ryu',
+          'oslo.config',
           'pytest',
           'Flask',
           'flask_restful',