diff --git a/chain/src/chain.rs b/chain/src/chain.rs
index b8a06fbc60..b2124f8da7 100644
--- a/chain/src/chain.rs
+++ b/chain/src/chain.rs
@@ -1481,9 +1481,7 @@ impl BlockChain {
         }
         // Caculate the ghostdata of the virutal node created by all tips.
         // And the ghostdata.selected of the tips will be the latest head.
-        let block_hash = {
-            dag.ghost_dag_manager().find_selected_parent(tips.iter().copied())?
-        };
+        let block_hash = dag.ghost_dag_manager().find_selected_parent(tips.iter().copied())?;
         let (block, block_info) = {
             let block = self
                 .storage