diff --git a/anki/sched.py b/anki/sched.py
index b61d37422..1ca93756c 100644
--- a/anki/sched.py
+++ b/anki/sched.py
@@ -169,6 +169,7 @@ order by due""" % self._deckLimit(),
 
     def deckDueList(self):
         "Returns [deckname, did, due, new]"
+        self._checkDay()
         decks = self.col.decks.all()
         decks.sort(key=itemgetter('name'))
         lims = {}