diff --git a/core/chain_manager.go b/core/chain_manager.go
index 485c195d5..780242f56 100644
--- a/core/chain_manager.go
+++ b/core/chain_manager.go
@@ -351,6 +351,7 @@ func (self *ChainManager) InsertChain(chain types.Blocks) error {
 			chainlogger.Infoln(err)
 			return err
 		}
+		block.Td = td
 
 		self.mu.Lock()
 		{