diff --git a/translations/ja_JP.ts b/translations/ja_JP.ts
index 627a35ba9..72b6f1a68 100644
--- a/translations/ja_JP.ts
+++ b/translations/ja_JP.ts
@@ -1266,7 +1266,7 @@
     </message>
     <message>
         <source>Optimize Database</source>
-        <translation></translation>
+        <translation>データベースの最適化</translation>
     </message>
     <message>
         <source>Open link in current tab</source>
@@ -4119,4 +4119,4 @@ After adding or removing certificate paths, it is neccessary to restart QupZilla
         <translation>このページでこれ以上ダイアログを表示させない</translation>
     </message>
 </context>
-</TS>
+</TS>
\ No newline at end of file