diff --git a/kernel/model/flashcard.go b/kernel/model/flashcard.go
index b7e7ba9fa..bf1693aa1 100644
--- a/kernel/model/flashcard.go
+++ b/kernel/model/flashcard.go
@@ -641,7 +641,7 @@ func (tx *Transaction) doRemoveFlashcards(operation *Operation) (ret *TxErr) {
 	deckLock.Lock()
 	defer deckLock.Unlock()
 
-	if syncingStorages.Load() {
+	if isSyncing.Load() {
 		ret = &TxErr{code: TxErrCodeDataIsSyncing}
 		return
 	}
@@ -753,7 +753,7 @@ func (tx *Transaction) doAddFlashcards(operation *Operation) (ret *TxErr) {
 	deckLock.Lock()
 	defer deckLock.Unlock()
 
-	if syncingStorages.Load() {
+	if isSyncing.Load() {
 		ret = &TxErr{code: TxErrCodeDataIsSyncing}
 		return
 	}