diff --git a/src/log-store/src/raft_engine/backend.rs b/src/log-store/src/raft_engine/backend.rs
index a811d0910907..43ed638448f1 100644
--- a/src/log-store/src/raft_engine/backend.rs
+++ b/src/log-store/src/raft_engine/backend.rs
@@ -365,7 +365,6 @@ impl KvBackend for RaftEngineBackend {
             }
             batch.delete(SYSTEM_NAMESPACE, key);
         }
-        let engine = self.engine.read().unwrap();
         engine
             .write(&mut batch, false)
             .context(RaftEngineSnafu)