diff --git a/promo/middleware/cookies.py b/promo/middleware/cookies.py
index acd0aee..d2e4ce4 100644
--- a/promo/middleware/cookies.py
+++ b/promo/middleware/cookies.py
@@ -11,6 +11,9 @@ class PageHistoryMiddleware(object):
 
         history = request.session['history']
 
+        if not request.current_page:
+            return
+
         page = request.current_page.id
         if page not in history:
             history = history + [page]