diff --git a/.env.example b/.env.example
index f30586cf5..6f955564d 100644
--- a/.env.example
+++ b/.env.example
@@ -1,6 +1,5 @@
 ZO_ROOT_USER_EMAIL = "root@example.com"
 ZO_ROOT_USER_PASSWORD = "Complexpass#123"
-ZO_DATA_DIR = "./data/"
 ZO_MAX_FILE_SIZE_ON_DISK = 32
 ZO_FILE_PUSH_INTERVAL = 10
 ZO_S3_BUCKET_NAME = "zinc-dev"
diff --git a/src/infra/config.rs b/src/infra/config.rs
index 82249dd6c..07c96379a 100644
--- a/src/infra/config.rs
+++ b/src/infra/config.rs
@@ -122,11 +122,11 @@ pub struct Common {
     pub node_role: String,
     #[env_config(name = "ZO_INSTANCE_NAME", default = "")]
     pub instance_name: String,
-    #[env_config(name = "ZO_DATA_DIR", default = "./data/")]
+    #[env_config(name = "ZO_DATA_DIR", default = "./data/zincobserve/")]
     pub data_dir: String,
-    #[env_config(name = "ZO_DATA_WAL_DIR", default = "")] // ./data/wal/
+    #[env_config(name = "ZO_DATA_WAL_DIR", default = "")] // ./data/zincobserve/wal/
     pub data_wal_dir: String,
-    #[env_config(name = "ZO_DATA_STREAM_DIR", default = "")] // ./data/stream/
+    #[env_config(name = "ZO_DATA_STREAM_DIR", default = "")] // ./data/zincobserve/stream/
     pub data_stream_dir: String,
     #[env_config(name = "ZO_WAL_MEMORY_MODE_ENABLED", default = false)]
     pub wal_memory_mode_enabled: bool,
@@ -262,7 +262,7 @@ pub struct Etcd {
 
 #[derive(Clone, Debug, EnvConfig)]
 pub struct Sled {
-    #[env_config(name = "ZO_SLED_DATA_DIR", default = "")] // ./data/db/
+    #[env_config(name = "ZO_SLED_DATA_DIR", default = "")] // ./data/zincobserve/db/
     pub data_dir: String,
     #[env_config(name = "ZO_SLED_PREFIX", default = "/zinc/observe/")]
     pub prefix: String,
@@ -336,7 +336,7 @@ pub fn init() -> Config {
 
 fn check_path_config(cfg: &mut Config) -> Result<(), anyhow::Error> {
     if cfg.common.data_dir.is_empty() {
-        cfg.common.data_dir = "./data/".to_string();
+        cfg.common.data_dir = "./data/zincobserve/".to_string();
     }
     if !cfg.common.data_dir.ends_with('/') {
         cfg.common.data_dir = format!("{}/", cfg.common.data_dir);