diff --git a/youtube_dl/extractor/twitter.py b/youtube_dl/extractor/twitter.py
index ced4ee19e..7399cf538 100644
--- a/youtube_dl/extractor/twitter.py
+++ b/youtube_dl/extractor/twitter.py
@@ -229,7 +229,7 @@ class TwitterCardIE(TwitterBaseIE):
 
         title = self._search_regex(r'<title>([^<]+)</title>', webpage, 'title')
         thumbnail = config.get('posterImageUrl') or config.get('image_src')
-        duration = float_or_none(config.get('duration'), scale=10e2) or duration
+        duration = float_or_none(config.get('duration'), scale=1000) or duration
 
         return {
             'id': video_id,
@@ -372,22 +372,6 @@ class TwitterIE(InfoExtractor):
         'params': {
             'format': 'best[format_id^=http-]',
         },
-    }, {
-        # checks for correct duration
-        'url': 'https://twitter.com/SophiePassmann/status/903676793860829184',
-        'md5': '0c1edf87dd3afacf7b36b5a5666c00cc',
-        'info_dict': {
-            'id': '903676793860829184',
-            'ext': 'mp4',
-            'title': 'Sophie Passmann - Schaut euch an, was ich geschickt bekommen habe 😍😍😍 #unboxing #sponsored #ad',
-            'description': 'Sophie Passmann on Twitter: "Schaut euch an, was ich geschickt bekommen habe 😍😍😍 #unboxing #sponsored #ad https://t.co/jGWWxoVWYm"',
-            'uploader_id': 'SophiePassmann',
-            'uploader': 'Sophie Passmann',
-            'duration': 107.4,
-        },
-        'params': {
-            'skip_download': True,
-        },
     }]
 
     def _real_extract(self, url):