diff --git a/frontend/src/lib/api.ts b/frontend/src/lib/api.ts
index 4047581..1e68c03 100644
--- a/frontend/src/lib/api.ts
+++ b/frontend/src/lib/api.ts
@@ -471,7 +471,7 @@ class ApiClient {
 
   // --- OnlyOffice ---
   async createOnlyOfficeFile(type: 'word' | 'slide') {
-    const res = await this.request('/onlyoffice/create', {
+    const res = await this.request('/api/onlyoffice/create', {
       method: 'POST',
       body: JSON.stringify({ type })
     });
@@ -479,7 +479,7 @@ class ApiClient {
   }
 
   async signOnlyOfficeConfig(config: any) {
-    const res = await this.request('/onlyoffice/sign', {
+    const res = await this.request('/api/onlyoffice/sign', {
       method: 'POST',
       body: JSON.stringify(config)
     });