diff --git a/app/src/main/res/values-ja/strings.xml b/app/src/main/res/values-ja/strings.xml
index 268bb90..ca9fb0b 100644
--- a/app/src/main/res/values-ja/strings.xml
+++ b/app/src/main/res/values-ja/strings.xml
@@ -23,4 +23,7 @@
     <string name="icon_of_the_app">Icon of the app</string>
     <string name="open_with">Open with</string>
     <string name="redirect_gm_to_osm">Redirect Google Map to OpenStreetMap</string>
+    <string name="custom_osm">Custom OSM hostname</string>
+    <string name="redirect_youtube_to_invidious">Redirect YouTube to Invidious</string>
+    <string name="redirect_twitter_to_nitter">Redirect Twitter to Nitter</string>
 </resources>