diff --git a/app/logical/sources/strategies/pixiv.rb b/app/logical/sources/strategies/pixiv.rb
index 6cb89a57c..0c852e44d 100644
--- a/app/logical/sources/strategies/pixiv.rb
+++ b/app/logical/sources/strategies/pixiv.rb
@@ -59,6 +59,7 @@ module Sources
 
       def rewrite_thumbnails(thumbnail_url, is_manga=nil)
         thumbnail_url = rewrite_new_medium_images(thumbnail_url)
+        thumbnail_url = rewrite_medium_ugoiras(thumbnail_url)
         thumbnail_url = rewrite_old_small_and_medium_images(thumbnail_url, is_manga)
         return thumbnail_url
       end
@@ -95,6 +96,16 @@ module Sources
         thumbnail_url
       end
 
+      # http://i3.pixiv.net/img-zip-ugoira/img/2014/12/03/04/58/24/47378698_ugoira600x600.zip
+      # => http://i3.pixiv.net/img-zip-ugoira/img/2014/12/03/04/58/24/47378698_ugoira1920x1080.zip
+      def rewrite_medium_ugoiras(thumbnail_url)
+        if thumbnail_url =~ %r!/img-zip-ugoira/img/.*/\d+_ugoira600x600.zip!i
+          thumbnail_url = thumbnail_url.sub("_ugoira600x600.zip", "_ugoira1920x1080.zip")
+        end
+
+        thumbnail_url
+      end
+
       # If the thumbnail is for a manga gallery, it needs to be rewritten like this:
       #
       # http://i2.pixiv.net/img18/img/evazion/14901720_m.png