diff --git a/trie/trienode/node.go b/trie/trienode/node.go
index 228a64f04c..0aeccebc81 100644
--- a/trie/trienode/node.go
+++ b/trie/trienode/node.go
@@ -40,7 +40,7 @@ func (n *Node) Size() int {
 
 // IsDeleted returns the indicator if the node is marked as deleted.
 func (n *Node) IsDeleted() bool {
-	return len(n.Blob) == 0
+	return n.Blob == nil
 }
 
 // New constructs a node with provided node information.