diff --git a/anki/decks.py b/anki/decks.py
index 74c16c5de..a4e824730 100644
--- a/anki/decks.py
+++ b/anki/decks.py
@@ -20,7 +20,7 @@ defaultDeck = {
     'conf': 1,
     'usn': 0,
     'desc': "",
-    'dyn': 0,
+    'dyn': 0,  # anki uses int/bool interchangably here
     'collapsed': False,
     # added in beta11
     'extendNew': 10,