diff --git a/yt_dlp/extractor/parti.py b/yt_dlp/extractor/parti.py
index 39cca88399..a97a19f31f 100644
--- a/yt_dlp/extractor/parti.py
+++ b/yt_dlp/extractor/parti.py
@@ -22,7 +22,7 @@ class PartiVideoIE(PartiBaseIE):
                 'title': 'NOW LIVE ',
                 'upload_date': '20250327',
                 'is_live': False,
-                'categories': list,
+                'categories': ['Gaming'],
                 'thumbnail': 'https://assets.parti.com/351424_eb9e5250-2821-484a-9c5f-ca99aa666c87.png',
                 'channel': 'ItZTMGG',
                 'timestamp': 1743044379,