diff --git a/src/Lookup/WebLookup.php b/src/Lookup/WebLookup.php
index 731f4b7..8447c31 100644
--- a/src/Lookup/WebLookup.php
+++ b/src/Lookup/WebLookup.php
@@ -35,6 +35,7 @@ final class WebLookup implements \Uiharu\ILookup {
             CURLOPT_USERAGENT => 'Mozilla/5.0 (compatible; FlashiiBot/2.5; Uiharu/' . UIH_VERSION . '; +http://fii.moe/uiharu)',
             CURLOPT_HTTPHEADER => [
                 'Accept: text/html, application/xhtml+xml, application/xml;q=0.9, */*;q=0.8',
+                'Accept-Language: en-GB, en;q=0.9, ja-jp;q=0.6, *;q=0.5',
             ],
         ]);
         return $curl;