diff --git a/app/models/artist_url.rb b/app/models/artist_url.rb
index caefee4d6..cec0b5c1d 100644
--- a/app/models/artist_url.rb
+++ b/app/models/artist_url.rb
@@ -11,6 +11,7 @@ class ArtistUrl < ActiveRecord::Base
       url = url.gsub(/^http:\/\/blog-imgs-\d+\.fc2/, "http://blog.fc2")
       url = url.gsub(/^http:\/\/blog-imgs-\d+-\w+\.fc2/, "http://blog.fc2")
       url = url.gsub(/^http:\/\/img\d+\.pixiv\.net/, "http://img.pixiv.net")
+      url = url.gsub(/^http:\/\/i\d+\.pixiv\.net\/img\d+/, "http://img.pixiv.net")
       url = url.gsub(/\/+\Z/, "")
       url + "/"
     end
@@ -25,6 +26,7 @@ class ArtistUrl < ActiveRecord::Base
     url = url.gsub(/^http:\/\/blog-imgs-\d+\.fc2/, "http://blog*.fc2")
     url = url.gsub(/^http:\/\/blog-imgs-\d+-\w+\.fc2/, "http://blog*.fc2")
     url = url.gsub(/^http:\/\/img\d+\.pixiv\.net/, "http://img*.pixiv.net")    
+    url = url.gsub(/^http:\/\/i\d+\.pixiv\.net\/img\d+/, "http://*.pixiv.net/img*")
   end
 
   def normalize