diff --git a/core/src/main.rs b/core/src/main.rs
index bd57cc3..18548da 100644
--- a/core/src/main.rs
+++ b/core/src/main.rs
@@ -1,4 +1,4 @@
-use homedisk_utils::{database::Database, config::Config};
+use homedisk_utils::{config::Config, database::Database};
 
 #[tokio::main]
 async fn main() {
diff --git a/utils/src/config/config.rs b/utils/src/config/config.rs
index 6ba75c8..005684b 100644
--- a/utils/src/config/config.rs
+++ b/utils/src/config/config.rs
@@ -20,7 +20,12 @@ impl Config {
     /// parse configuration file
     pub fn parse() -> Result<Config, Error> {
         // configuration file path
-        let config_dir = if dirs::config_dir() == None { return Err(Error::UnknowConfigDir()) } else { dirs::config_dir().unwrap() };
+        let config_dir = if dirs::config_dir() == None {
+            return Err(Error::UnknowConfigDir());
+        } else {
+            dirs::config_dir().unwrap()
+        };
+
         let config_path = format!("{}/homedisk/config.toml", config_dir.to_string_lossy());
 
         let config = fs::read_to_string(config_path)?;
diff --git a/utils/src/config/error.rs b/utils/src/config/error.rs
index 1185aec..1b9d48c 100644
--- a/utils/src/config/error.rs
+++ b/utils/src/config/error.rs
@@ -22,7 +22,9 @@ impl From<toml::de::Error> for Error {
 impl fmt::Display for Error {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         match self {
-            Error::UnknowConfigDir() => write!(f, "failed to lock up a system configuration directory"),
+            Error::UnknowConfigDir() => {
+                write!(f, "failed to lock up a system configuration directory")
+            }
             Error::Io(err) => write!(f, "{}", err),
             Error::Toml(err) => write!(f, "{}", err),
         }