diff --git a/src/personalisation/middleware.py b/src/personalisation/middleware.py
index 69ac0d4..b9a68d4 100644
--- a/src/personalisation/middleware.py
+++ b/src/personalisation/middleware.py
@@ -21,6 +21,9 @@ class SegmentMiddleware(object):
 
         response = self.get_response(request)
 
+        if not request.session.get('segments'):
+            request.session['segments'] = []
+
         print(request.session['segments'])
 
         return response