diff --git a/haruhi_dl/extractor/extractors.py b/haruhi_dl/extractor/extractors.py
index 9de5ca165..977112ab3 100644
--- a/haruhi_dl/extractor/extractors.py
+++ b/haruhi_dl/extractor/extractors.py
@@ -819,7 +819,6 @@ from .nick import (
     NickRuIE,
 )
 from .niconico import NiconicoIE, NiconicoPlaylistIE
-from .ninateka import NinatekaIE
 from .ninecninemedia import NineCNineMediaIE
 from .ninegag import NineGagIE
 from .ninenow import NineNowIE
diff --git a/haruhi_dl/extractor/ninateka.py b/haruhi_dl/extractor/ninateka.py
deleted file mode 100644
index 6c2932c6f..000000000
--- a/haruhi_dl/extractor/ninateka.py
+++ /dev/null
@@ -1,100 +0,0 @@
-# coding: utf-8
-from __future__ import unicode_literals
-
-from .common import InfoExtractor
-from ..utils import (
-    determine_ext,
-    js_to_json,
-)
-
-
-class NinatekaIE(InfoExtractor):
-    IE_NAME = 'ninateka'
-    _VALID_URL = r'https?://ninateka\.pl/(?:film|audio)/(?P<id>[^/\?#]+)'
-    _TESTS = [{
-        'url': 'https://ninateka.pl/film/dziwne-przygody-kota-filemona-7',
-        'md5': '8b25c2998b48e1add7d93a5e27030786',
-        'info_dict': {
-            'id': 'dziwne-przygody-kota-filemona-7',
-            'ext': 'mp4',
-            'title': 'Dziwny świat kota Filemona | Poważne zmartwienie',
-            'description': 'Filemon ma kłopot z własnym wyglądem, czy uda mu się z nim uporać?',
-        },
-    }, {
-        'url': 'https://ninateka.pl/audio/telefon-drony-fisz-1-12',
-        'md5': 'fa03fc229d3b4d8eaa18976a7020909e',
-        'info_dict': {
-            'id': 'telefon-drony-fisz-1-12',
-            'ext': 'm4a',
-            'title': 'Telefon | Drony | Fisz Emade Tworzywo | 1/12',
-            'description': 'Utwór z długo wyczekiwanego albumu studyjnego Fisz Emade Tworzywo pt. „Drony”',
-        },
-    }]
-
-    def decode_url(self, encoded):
-        xor_val = ord('h') ^ ord(encoded[0])
-        return ''.join(chr(ord(c) ^ xor_val) for c in encoded)
-
-    def extract_formats(self, data, video_id, name):
-        info = self._parse_json(data, video_id, transform_source=js_to_json)
-        formats = []
-
-        for source_info in info['sources']:
-            url = self.decode_url(source_info['src'])
-            type_ = source_info.get('type')
-
-            if type_ == 'application/vnd.ms-sstr+xml' or url.endswith('/Manifest'):
-                formats.extend(self._extract_ism_formats(
-                    url, video_id, ism_id='mss-{}'.format(name), fatal=False))
-
-            elif type_ == 'application/x-mpegURL' or url.endswith('.m3u8'):
-                formats.extend(self._extract_m3u8_formats(
-                    url, video_id, ext='mp4', m3u8_id='hls-{}'.format(name), fatal=False))
-
-            elif type_ == 'application/dash+xml' or url.endswith('.mpd'):
-                formats.extend(self._extract_mpd_formats(
-                    url, video_id, mpd_id='dash-{}'.format(name), fatal=False))
-
-            elif url.endswith('.f4m'):
-                formats.extend(self._extract_f4m_formats(
-                    url, video_id, f4m_id='hds-{}'.format(name), fatal=False))
-
-            else:
-                formats.append({
-                    'format_id': 'direct-{}'.format(name),
-                    'url': url,
-                    'ext': determine_ext(url, 'mp4'),
-                })
-
-        return formats
-
-    def _real_extract(self, url):
-        video_id = self._match_id(url)
-        webpage = self._download_webpage(url, video_id)
-
-        main = self._search_regex(
-            r'(?m)(?:var|let|const)\s+playerOptionsWithMainSource\s*=\s*(\{.*?\})\s*;\s*?$',
-            webpage, 'main source')
-        formats = self.extract_formats(main, video_id, 'main')
-
-        audiodesc = self._search_regex(
-            r'(?m)(?:var|let|const)\s+playerOptionsWithAudioDescriptionSource\s*=\s*(\{.*?\})\s*;\s*?$',
-            webpage, 'audio description', default=None)
-        if audiodesc:
-            formats.extend(self.extract_formats(audiodesc, video_id, 'audiodescription'))
-
-        english_ver = self._search_regex(
-            r'(?m)(?:var|let|const)\s+playerOptionsWithEnglishVersion\s*=\s*(\{.*?\})\s*;\s*?$',
-            webpage, 'english version', default=None)
-        if english_ver:
-            formats.extend(self.extract_formats(english_ver, video_id, 'english'))
-
-        self._sort_formats(formats)
-
-        return {
-            'id': video_id,
-            'title': self._og_search_title(webpage),
-            'formats': formats,
-            'description': self._og_search_description(webpage),
-            'thumbnail': self._og_search_thumbnail(webpage),
-        }