diff --git a/yt_dlp/extractor/njpwworld.py b/yt_dlp/extractor/njpwworld.py
index 3639d142f..89380d039 100644
--- a/yt_dlp/extractor/njpwworld.py
+++ b/yt_dlp/extractor/njpwworld.py
@@ -77,13 +77,8 @@ def _real_extract(self, url):
         for kind, vid in re.findall(r'if\s+\(\s*imageQualityType\s*==\s*\'([^\']+)\'\s*\)\s*{\s*video_id\s*=\s*"(\d+)"', webpage):
             player_path = '/intent?id=%s&type=url' % vid
             player_url = compat_urlparse.urljoin(url, player_path)
-            formats.append({
-                'url': player_url,
-                'format_id': kind,
-                'ext': 'mp4',
-                'protocol': 'm3u8',
-                'quality': 2 if kind == 'high' else 1,
-            })
+            formats += self._extract_m3u8_formats(
+                player_url, video_id, 'mp4', 'm3u8_native', m3u8_id=kind, fatal=False, quality=int(kind == 'high'))
 
         self._sort_formats(formats)