diff --git a/yt_dlp/extractor/vocaroo.py b/yt_dlp/extractor/vocaroo.py
index d98fbfd2d9..e30c9597f7 100644
--- a/yt_dlp/extractor/vocaroo.py
+++ b/yt_dlp/extractor/vocaroo.py
@@ -57,7 +57,7 @@ def _real_extract(self, url):
             'title': '',
             'url': url,
             'ext': 'mp3',
-            'timestamp': float_or_none(resp.getheader('x-bz-upload-timestamp'), scale=1000),
+            'timestamp': float_or_none(resp.headers.get('x-bz-upload-timestamp'), scale=1000),
             'vcodec': 'none',
             'http_headers': http_headers,
         }