diff --git a/src/api/v1/auth/login.rs b/src/api/v1/auth/login.rs
index 5229425..04d6b4f 100644
--- a/src/api/v1/auth/login.rs
+++ b/src/api/v1/auth/login.rs
@@ -11,7 +11,7 @@ use crate::{
     error::Error,
     schema::*,
     utils::{
-        PASSWORD_REGEX, generate_access_token, generate_refresh_token, refresh_token_cookie,
+        PASSWORD_REGEX, generate_access_token, generate_refresh_token, new_refresh_token_cookie,
         user_uuid_from_identifier,
     },
 };
@@ -89,6 +89,6 @@ pub async fn response(
         .await?;
 
     Ok(HttpResponse::Ok()
-        .cookie(refresh_token_cookie(refresh_token))
+        .cookie(new_refresh_token_cookie(refresh_token))
         .json(Response { access_token }))
 }
diff --git a/src/api/v1/auth/refresh.rs b/src/api/v1/auth/refresh.rs
index b64b10e..cc3bbe9 100644
--- a/src/api/v1/auth/refresh.rs
+++ b/src/api/v1/auth/refresh.rs
@@ -11,20 +11,16 @@ use crate::{
         access_tokens::{self, dsl},
         refresh_tokens::{self, dsl as rdsl},
     },
-    utils::{generate_access_token, generate_refresh_token, refresh_token_cookie},
+    utils::{generate_access_token, generate_refresh_token, new_refresh_token_cookie},
 };
 
 use super::Response;
 
 #[post("/refresh")]
 pub async fn res(req: HttpRequest, data: web::Data<Data>) -> Result<HttpResponse, Error> {
-    let recv_refresh_token_cookie = req.cookie("refresh_token");
+    let mut refresh_token_cookie = req.cookie("refresh_token").ok_or(Error::Unauthorized("request has no refresh token".to_string()))?;
 
-    if recv_refresh_token_cookie.is_none() {
-        return Ok(HttpResponse::Unauthorized().finish());
-    }
-
-    let mut refresh_token = String::from(recv_refresh_token_cookie.unwrap().value());
+    let mut refresh_token = String::from(refresh_token_cookie.value());
 
     let current_time = SystemTime::now().duration_since(UNIX_EPOCH)?.as_secs() as i64;
 
@@ -47,8 +43,6 @@ pub async fn res(req: HttpRequest, data: web::Data<Data>) -> Result<HttpResponse
                 error!("{}", error);
             }
 
-            let mut refresh_token_cookie = refresh_token_cookie(refresh_token);
-
             refresh_token_cookie.make_removal();
 
             return Ok(HttpResponse::Unauthorized()
@@ -91,12 +85,10 @@ pub async fn res(req: HttpRequest, data: web::Data<Data>) -> Result<HttpResponse
             .await?;
 
         return Ok(HttpResponse::Ok()
-            .cookie(refresh_token_cookie(refresh_token))
+            .cookie(new_refresh_token_cookie(refresh_token))
             .json(Response { access_token }));
     }
 
-    let mut refresh_token_cookie = refresh_token_cookie(refresh_token);
-
     refresh_token_cookie.make_removal();
 
     Ok(HttpResponse::Unauthorized()
diff --git a/src/api/v1/auth/register.rs b/src/api/v1/auth/register.rs
index 0e170ee..c1480ab 100644
--- a/src/api/v1/auth/register.rs
+++ b/src/api/v1/auth/register.rs
@@ -21,7 +21,7 @@ use crate::{
     },
     utils::{
         EMAIL_REGEX, PASSWORD_REGEX, USERNAME_REGEX, generate_access_token, generate_refresh_token,
-        refresh_token_cookie,
+        new_refresh_token_cookie,
     },
 };
 
@@ -146,7 +146,7 @@ pub async fn res(
             .await?;
 
         return Ok(HttpResponse::Ok()
-            .cookie(refresh_token_cookie(refresh_token))
+            .cookie(new_refresh_token_cookie(refresh_token))
             .json(Response { access_token }));
     }
 
diff --git a/src/utils.rs b/src/utils.rs
index 5ef2187..3241dee 100644
--- a/src/utils.rs
+++ b/src/utils.rs
@@ -100,7 +100,7 @@ pub fn get_ws_protocol_header(headers: &HeaderMap) -> Result<&str, Error> {
     Ok(auth_value.unwrap())
 }
 
-pub fn refresh_token_cookie(refresh_token: String) -> Cookie<'static> {
+pub fn new_refresh_token_cookie(refresh_token: String) -> Cookie<'static> {
     Cookie::build("refresh_token", refresh_token)
         .http_only(true)
         .secure(true)