diff --git a/apps/mobile_frontend/i18n/messages.ja.xml b/apps/mobile_frontend/i18n/messages.ja.xml
index 94b39c785..5058f5ace 100644
--- a/apps/mobile_frontend/i18n/messages.ja.xml
+++ b/apps/mobile_frontend/i18n/messages.ja.xml
@@ -1247,6 +1247,10 @@
         <source>A mobile UID is invalid.</source>
         <target>その携帯電話の個体識別番号は無効です。</target>
       </trans-unit>
+      <trans-unit id="">
+        <source>Invalid pc_address.</source>
+        <target>ﾒｰﾙｱﾄﾞﾚｽが無効です。</target>
+      </trans-unit>
     </body>
   </file>
 </xliff>