diff --git a/java/res/values-ja/strings.xml b/java/res/values-ja/strings.xml
index d3be98b..5ae8fcc 100644
--- a/java/res/values-ja/strings.xml
+++ b/java/res/values-ja/strings.xml
@@ -124,6 +124,7 @@
     <string name="custom_input_style_already_exists" msgid="8008728952215449707">"同じ入力スタイルが既に存在します: <xliff:g id="INPUT_STYLE_NAME">%s</xliff:g>"</string>
     <string name="prefs_keypress_vibration_duration_settings" msgid="7918341459947439226">"キー操作バイブの振動時間"</string>
     <string name="prefs_keypress_sound_volume_settings" msgid="6027007337036891623">"キー操作音の音量"</string>
+    <string name="prefs_key_longpress_timeout_settings" msgid="6102240298932897873">"キーの長押し時間"</string>
     <string name="button_default" msgid="3988017840431881491">"デフォルト"</string>
     <string name="setup_welcome_title" msgid="6112821709832031715">"<xliff:g id="APPLICATION_NAME">%s</xliff:g>へようこそ"</string>
     <string name="setup_welcome_additional_description" msgid="8150252008545768953">"新しいジェスチャー入力をお試しください"</string>