diff --git a/yt_dlp/extractor/cloudflarestream.py b/yt_dlp/extractor/cloudflarestream.py
index 0333d5def..0a6073403 100644
--- a/yt_dlp/extractor/cloudflarestream.py
+++ b/yt_dlp/extractor/cloudflarestream.py
@@ -51,7 +51,7 @@ class CloudflareStreamIE(InfoExtractor):
         base_url = 'https://%s/%s/' % (domain, video_id)
         if '.' in video_id:
             video_id = self._parse_json(base64.urlsafe_b64decode(
-                video_id.split('.')[1]), video_id)['sub']
+                video_id.split('.')[1] + '==='), video_id)['sub']
         manifest_base_url = base_url + 'manifest/video.'
 
         formats = self._extract_m3u8_formats(