diff --git a/panikweb/settings.py b/panikweb/settings.py
index 0c2fa86b661dc4c99b763653221ba4b9b904f1a3..51d730b19ffa50623b37cd5de12f3eba419c77b2 100644
--- a/panikweb/settings.py
+++ b/panikweb/settings.py
@@ -237,6 +237,7 @@ LANGUAGE_COOKIE_NAME = 'panikweb_language'
 TEMPLATE_VARS = {}
 
 COMBO_DASHBOARD_ENABLED = False
+JSON_CELL_TYPES = {}
 
 WEBSITE_BASE_URL = 'http://www.radiopanik.org/'