diff --git a/kernel/model/block.go b/kernel/model/block.go
index 6007b74b8..9a85e6a8e 100644
--- a/kernel/model/block.go
+++ b/kernel/model/block.go
@@ -242,7 +242,7 @@ func GetHeadingDeleteTransaction(id string) (transaction *Transaction, err error
 		if nil != n.Parent {
 			op.ParentID = n.Parent.ID
 		}
-		if nil != n.Parent {
+		if nil != n.Previous {
 			op.PreviousID = n.Previous.ID
 		}
 		op.Action = "insert"