diff --git a/pylib/anki/cards.py b/pylib/anki/cards.py
index dafc29145..093776ebb 100644
--- a/pylib/anki/cards.py
+++ b/pylib/anki/cards.py
@@ -48,6 +48,7 @@ class Card(DeprecatedNamesMixin):
     type: CardType
     memory_state: FSRSMemoryState | None
     desired_retention: float | None
+    decay: float | None
 
     def __init__(
         self,
@@ -101,6 +102,7 @@ class Card(DeprecatedNamesMixin):
         self.desired_retention = (
             card.desired_retention if card.HasField("desired_retention") else None
         )
+        self.decay = card.decay if card.HasField("decay") else None
 
     def _to_backend_card(self) -> cards_pb2.Card:
         # mtime & usn are set by backend
@@ -124,6 +126,7 @@ class Card(DeprecatedNamesMixin):
             custom_data=self.custom_data,
             memory_state=self.memory_state,
             desired_retention=self.desired_retention,
+            decay=self.decay,
         )
 
     @deprecated(info="please use col.update_card()")