diff --git a/src/personalisation/middleware.py b/src/personalisation/middleware.py
index 10dc2b2..7604755 100644
--- a/src/personalisation/middleware.py
+++ b/src/personalisation/middleware.py
@@ -40,3 +40,4 @@ class SegmentMiddleware(object):
 
         if segment not in request.session['segments']:
             request.session['segments'].append(segment.encoded_name())
+