diff --git a/yt_dlp/extractor/common.py b/yt_dlp/extractor/common.py
index 86dcab07d..2b4c948fe 100644
--- a/yt_dlp/extractor/common.py
+++ b/yt_dlp/extractor/common.py
@@ -2275,7 +2275,7 @@ def extract_media(x_media_line):
             if media_type not in ('VIDEO', 'AUDIO'):
                 return
             channels = media.get('CHANNELS')
-            if not channels is None and channels.isDigit():
+            if not channels is None and str(channels).isdigit():
                 channels = int(channels)
             media_url = media.get('URI')
             if media_url: