diff --git a/requirements.txt b/requirements.txt
index 8baecb15..284f2b50 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,3 +8,6 @@ python-cinderclient>=1.0.6
 eventlet>=0.13.0
 iso8601>=0.1.8
 six>=1.4.1
+
+# py2.6 compat
+ordereddict