diff --git a/db/repositories/documents/documents.py b/db/repositories/documents/documents.py
index 42ae8ac..aa25648 100644
--- a/db/repositories/documents/documents.py
+++ b/db/repositories/documents/documents.py
@@ -210,7 +210,7 @@ async def preview(self, document: Dict[str, Any]) -> FileResponse:
             raise ValueError("Unsupported file type.")
 
         # Creating a temp file
-        with tempfile.NamedTemporaryFile(delete=False, suffix=extension) as temp:
+        with tempfile.NamedTemporaryFile(delete=True, suffix=extension) as temp:
             temp.write(file)
             temp_path = temp.name