diff --git a/yt_dlp/extractor/cwtv.py b/yt_dlp/extractor/cwtv.py
index 07239f39cf..9b83264ee1 100644
--- a/yt_dlp/extractor/cwtv.py
+++ b/yt_dlp/extractor/cwtv.py
@@ -91,4 +91,5 @@ def _real_extract(self, url):
             'timestamp': parse_iso8601(video_data.get('start_time')),
             'age_limit': parse_age_limit(video_data.get('rating')),
             'ie_key': 'ThePlatform',
+            'thumbnail': video_data.get('large_thumbnail')
         }