diff --git a/src/config_util.rs b/src/config_util.rs
index 61b77ec..6c7dafa 100644
--- a/src/config_util.rs
+++ b/src/config_util.rs
@@ -187,7 +187,7 @@ fn parse_oss_config(oss_config: &json::JsonValue) -> OSSConfig {
     }
 }
 
-pub fn get_string_value(json: &json::JsonValue, key: &str) -> Option<String> {
+fn get_string_value(json: &json::JsonValue, key: &str) -> Option<String> {
     let value = &json[key];
     match value.is_string() {
         true => Some(value.as_str().unwrap().to_string()),
@@ -280,7 +280,7 @@ fn get_config_content(custom_oss_backupd_config: Option<&str>, verbose: bool) ->
     None
 }
 
-pub fn get_user_home() -> XResult<String> {
+fn get_user_home() -> XResult<String> {
     match dirs::home_dir() {
          None => Err(new_box_ioerror("Home dir not found!")),
          Some(home_dir_o) => match home_dir_o.to_str() {
@@ -290,6 +290,6 @@ pub fn get_user_home() -> XResult<String> {
      }
  }
  
- pub fn get_user_home_dir(dir: &str) -> XResult<String> {
+ fn get_user_home_dir(dir: &str) -> XResult<String> {
      Ok(format!("{}/{}", get_user_home()?, dir))
  }