diff --git a/downloader.py b/downloader.py
index f78427d..52a1062 100644
--- a/downloader.py
+++ b/downloader.py
@@ -226,7 +226,8 @@ def fill_invoice_fields(page: Page) -> None:
 
 def sanitize_filename(name: str) -> str:
     name = re.sub(r'[<>:"/\\|?*]', '_', name)
-    name = re.sub(r'\s+', '_', name)
+    name = re.sub(r'\t+', '_', name)
+    name = re.sub(r'\n+', '_', name)
     return name.strip('_')