diff --git a/kernel/model/flashcard.go b/kernel/model/flashcard.go
index 036f4b721..3b4d20677 100644
--- a/kernel/model/flashcard.go
+++ b/kernel/model/flashcard.go
@@ -22,6 +22,7 @@ import (
 	"path/filepath"
 	"strings"
 	"sync"
+	"time"
 
 	"github.com/88250/gulu"
 	"github.com/88250/lute"
@@ -331,6 +332,13 @@ func InitFlashcards() {
 				continue
 			}
 
+			if 0 == deck.Created {
+				deck.Created = time.Now().Unix()
+			}
+			if 0 == deck.Updated {
+				deck.Updated = time.Now().UnixMilli()
+			}
+
 			Decks[deckID] = deck
 		}
 	}