diff --git a/src/controllers/document.controller.ts b/src/controllers/document.controller.ts
index 53db585..ee80272 100644
--- a/src/controllers/document.controller.ts
+++ b/src/controllers/document.controller.ts
@@ -39,7 +39,7 @@ export const uploadDocument = async (req: AuthenticatedRequest, res: Response) =
     } else {
       try {
         // officeParser natively supports pdf, docx, doc, rtf, txt, etc.
-        extractedText = await officeParser.parseOffice(file.buffer);
+        extractedText = (await officeParser.parseOffice(file.buffer)) as unknown as string;
       } catch (err: any) {
         console.error('officeParser Error:', err);
         return res.status(400).json({ error: 'Dosya formatı okunamadı veya desteklenmiyor.' });