diff --git a/kernel/av/value.go b/kernel/av/value.go
index f7c3b32897f..9f7cbe4c008 100644
--- a/kernel/av/value.go
+++ b/kernel/av/value.go
@@ -221,6 +221,10 @@ func (value *Value) IsEdited() bool {
 }
 
 func (value *Value) IsEmpty() bool {
+	if nil == value {
+		return true
+	}
+
 	switch value.Type {
 	case KeyTypeBlock:
 		if nil == value.Block {