diff --git a/nhentai/parser.py b/nhentai/parser.py
index 5b7f26c..fcee9ad 100644
--- a/nhentai/parser.py
+++ b/nhentai/parser.py
@@ -148,7 +148,7 @@ def doujinshi_parser(id_, counter=0):
     doujinshi['subtitle'] = subtitle.text if subtitle else ''
 
     doujinshi_cover = html.find('div', attrs={'id': 'cover'})
-    img_id = re.search('/galleries/([0-9]+)/cover.(jpg|png|gif)$',
+    img_id = re.search('/galleries/([0-9]+)/cover.(jpg|png|gif|webp)$',
                        doujinshi_cover.a.img.attrs['data-src'])
 
     ext = []