diff --git a/combo/data/models.py b/combo/data/models.py
index 68255c9c..66d297f6 100644
--- a/combo/data/models.py
+++ b/combo/data/models.py
@@ -727,7 +727,7 @@ class CellBase(six.with_metaclass(CellMeta, models.Model)):
            context.'''
         return True
 
-    def is_user_dependant(self, context):
+    def is_user_dependant(self, context=None):
         '''Return whether the cell content varies from user to user.'''
         return self.user_dependant
 
@@ -754,7 +754,7 @@ class CellBase(six.with_metaclass(CellMeta, models.Model)):
     def render_for_search(self):
         if not self.is_enabled():
             return ''
-        if self.user_dependant:
+        if self.is_user_dependant():
             return ''
         request = RequestFactory().get(self.page.get_online_url())
         request.user = None  # compat