diff --git a/config-templates/complex-tiflash.yaml b/config-templates/complex-tiflash.yaml
index 2a81a2fcfa140..1ac32c32afa22 100644
--- a/config-templates/complex-tiflash.yaml
+++ b/config-templates/complex-tiflash.yaml
@@ -107,9 +107,10 @@ tiflash_servers:
     # flash_proxy_port: 20170
     # flash_proxy_status_port: 20292
     # metrics_port: 8234
-    # deploy_dir: /tidb-deploy/tiflash-9000
+    # deploy_dir: "/tidb-deploy/tiflash-9000"
     ## The `data_dir` will be overwritten if you define `storage.main.dir` configurations in the `config` section.
-    # data_dir: /tidb-data/tiflash-9000
+    # data_dir: "/tidb-data/tiflash-9000"
+    # log_dir: "/tidb-deploy/tiflash-9000/log"
     # numa_node: "0,1"
     # # The following configs are used to overwrite the `server_configs.tiflash` values.
     # config: