diff --git a/src/__data__/api/api.ts b/src/__data__/api/api.ts
index 03e889b..76c542e 100644
--- a/src/__data__/api/api.ts
+++ b/src/__data__/api/api.ts
@@ -33,7 +33,7 @@ export const api = createApi({
   }),
   tagTypes: ['Chains', 'Chain', 'UserStats', 'SystemStats', 'Submissions', 'Queue'],
   endpoints: (builder) => ({
-    authUser: builder.mutation<ChallengeAuthResponse, { nickname: string }>({
+    authUser: builder.mutation<ChallengeAuthResponse, { nickname: string; workplaceNumber?: string }>({
       query: (body) => ({
         url: '/auth',
         method: 'POST',
diff --git a/src/context/ChallengeContext.tsx b/src/context/ChallengeContext.tsx
index 8d375dd..5a319f4 100644
--- a/src/context/ChallengeContext.tsx
+++ b/src/context/ChallengeContext.tsx
@@ -160,7 +160,10 @@ export const ChallengeProvider = ({ children }: PropsWithChildren) => {
 
   const login = useCallback(
     async (nicknameValue: string, workplaceNumberValue: string) => {
-      const response = await authUser({ nickname: nicknameValue }).unwrap()
+      const response = await authUser({ 
+        nickname: nicknameValue,
+        workplaceNumber: workplaceNumberValue || undefined
+      }).unwrap()
       setUserId(response.userId)
       setNickname(nicknameValue)
       setWorkplaceNumber(workplaceNumberValue)
diff --git a/stubs/api/index.js b/stubs/api/index.js
index b03aa43..0fd2577 100644
--- a/stubs/api/index.js
+++ b/stubs/api/index.js
@@ -24,7 +24,13 @@ router.use((req, res, next) => {
 
 // Challenge API endpoints
 router.post('/challenge/auth', (req, res) => {
-  res.json(readJson('auth.json'))
+  const { nickname, workplaceNumber } = req.body
+  const response = readJson('auth.json')
+  
+  // Логируем для отладки
+  console.log('Auth request:', { nickname, workplaceNumber })
+  
+  res.json(response)
 })
 
 router.get('/challenge/chains', (req, res) => {