diff --git a/youtube_dl/extractor/iprima.py b/youtube_dl/extractor/iprima.py
index a29e6a5bad..3c4b7e48b5 100644
--- a/youtube_dl/extractor/iprima.py
+++ b/youtube_dl/extractor/iprima.py
@@ -38,6 +38,8 @@ class IPrimaIE(InfoExtractor):
     def _real_extract(self, url):
         video_id = self._match_id(url)
 
+        self._set_cookie('play.iprima.cz', 'ott_adult_confirmed', '1')
+
         webpage = self._download_webpage(url, video_id)
 
         video_id = self._search_regex(r'data-product="([^"]+)">', webpage, 'real id')