diff --git a/app/logical/post_query_builder.rb b/app/logical/post_query_builder.rb
index 422ed41c9..470e60ecb 100644
--- a/app/logical/post_query_builder.rb
+++ b/app/logical/post_query_builder.rb
@@ -174,7 +174,7 @@ class PostQueryBuilder
         relation = relation.where("(posts.source = '' OR posts.source IS NULL)")
       elsif q[:source] == "http%"
         relation = relation.where("(lower(posts.source) like ?)", "http%")
-      elsif q[:source] =~ /^%\.?pixiv(?:\.net(?:\/img)?)?(?:%\/|(?=%$))(.+)$/i
+      elsif q[:source] =~ /^(?:https?:\/\/)?%\.?pixiv(?:\.net(?:\/img)?)?(?:%\/img\/|%\/|(?=%$))(.+)$/i
         relation = relation.where("SourcePattern(lower(posts.source)) LIKE lower(?) ESCAPE E'\\\\'", "pixiv/" + $1)
         has_constraints!
       else
@@ -188,7 +188,7 @@ class PostQueryBuilder
         relation = relation.where("(posts.source != '' AND posts.source IS NOT NULL)")
       elsif q[:source_neg] == "http%"
         relation = relation.where("(lower(posts.source) not like ?)", "http%")
-      elsif q[:source_neg] =~ /^%\.?pixiv(?:\.net(?:\/img)?)?(?:%\/|(?=%$))(.+)$/i
+      elsif q[:source_neg] =~ /^(?:https?:\/\/)?%\.?pixiv(?:\.net(?:\/img)?)?(?:%\/img\/|%\/|(?=%$))(.+)$/i
         relation = relation.where("SourcePattern(lower(posts.source)) NOT LIKE lower(?) ESCAPE E'\\\\'", "pixiv/" + $1)
         has_constraints!
       else
diff --git a/test/unit/post_test.rb b/test/unit/post_test.rb
index a15a73e2b..12c4249f3 100644
--- a/test/unit/post_test.rb
+++ b/test/unit/post_test.rb
@@ -1218,6 +1218,8 @@ class PostTest < ActiveSupport::TestCase
       post = FactoryGirl.create(:post, :source => url)
       assert_equal(1, Post.tag_match("source:*.pixiv.net/img*/artist-name/*").count)
       assert_equal(0, Post.tag_match("source:*.pixiv.net/img*/artist-fake/*").count)
+      assert_equal(1, Post.tag_match("source:http://*.pixiv.net/img*/img/artist-name/*").count)
+      assert_equal(0, Post.tag_match("source:http://*.pixiv.net/img*/img/artist-fake/*").count)
       assert_equal(1, Post.tag_match("source:pixiv/artist-name/*").count)
       assert_equal(0, Post.tag_match("source:pixiv/artist-fake/*").count)
     end