diff --git a/server/routes/logout.ts b/server/routes/logout.ts
index 0747014..ebdb18f 100644
--- a/server/routes/logout.ts
+++ b/server/routes/logout.ts
@@ -1,19 +1,12 @@
-import { H3Event } from 'h3';
-
 import { userIdentitySchema } from '../schemas';
 import { AUTH_PROVIDERS, COOKIE_NAMES } from '~/configs/properties';
 import { googleOAuthClient, octokitOAuthApp } from '~/server/services';
 import type { UserIdentity } from '~/server/types';
+import { cleanAuth } from '~/server/utils';
 import { base64ToString } from '~/utils/converters';
 
 const DEFAULT_LOCATION = '/';
 
-const clean = (event: H3Event) => {
-  setResponseHeader(event, 'Authorization', '');
-  deleteCookie(event, COOKIE_NAMES.refreshToken);
-  deleteCookie(event, COOKIE_NAMES.userIdentity);
-};
-
 export default defineEventHandler(async (event) => {
   const location = getRequestHeader(event, 'Location') ?? DEFAULT_LOCATION;
   const identityCookie = getCookie(event, COOKIE_NAMES.userIdentity) ?? '';
@@ -22,7 +15,7 @@ export default defineEventHandler(async (event) => {
   try {
     identity = userIdentitySchema.parse(JSON.parse(base64ToString(identityCookie)));
   } catch (error) {
-    clean(event);
+    cleanAuth(event);
 
     return await sendRedirect(event, location, 302);
   }
@@ -44,7 +37,7 @@ export default defineEventHandler(async (event) => {
     }
   }
 
-  clean(event);
+  cleanAuth(event);
 
   return await sendRedirect(event, location, 302);
 });
diff --git a/server/utils/index.ts b/server/utils/index.ts
index bb73f9f..1c806ba 100644
--- a/server/utils/index.ts
+++ b/server/utils/index.ts
@@ -1,3 +1,6 @@
+import { H3Event } from 'h3';
+
+import { COOKIE_NAMES } from '~/configs/properties';
 import { stringToBase64 } from '~/utils/converters';
 
 export async function fileToDataURI(file: File) {
@@ -12,3 +15,9 @@ export async function fileToDataURI(file: File) {
 
   return 'data:' + file.type + ';base64,' + base64;
 }
+
+export function cleanAuth(event: H3Event): void {
+  setResponseHeader(event, 'Authorization', '');
+  deleteCookie(event, COOKIE_NAMES.refreshToken);
+  deleteCookie(event, COOKIE_NAMES.userIdentity);
+}