diff --git a/src/i18n/ja_JP.jsonc b/src/i18n/ja_JP.jsonc
index e57fc75a..2264f068 100644
--- a/src/i18n/ja_JP.jsonc
+++ b/src/i18n/ja_JP.jsonc
@@ -215,6 +215,8 @@
   // Settings - Audio
   "settings.header.audio": "オーディオ",
   "settings.header.audio.description": "Ciderのオーディオ設定",
+  "settings.option.audio.volumeStep": "音量調整のステップ",
+  "settings.option.audio.maxVolume": "最大音量",
   "settings.option.audio.quality": "音質", // Dropdown
   "settings.header.audio.quality.hireslossless": "ハイレゾロスレス",
   "settings.header.audio.quality.hireslossless.description": "(最大解像度 24 ビット／192 kHz)",
diff --git a/src/i18n/zh_TW.jsonc b/src/i18n/zh_TW.jsonc
index b373c6f7..d66c4f73 100644
--- a/src/i18n/zh_TW.jsonc
+++ b/src/i18n/zh_TW.jsonc
@@ -229,6 +229,8 @@
   // Settings - Audio
   "settings.header.audio": "音訊",
   "settings.header.audio.description": "調整 Cider 的音訊設定",
+  "settings.option.audio.volumeStep": "音量改變量",
+  "settings.option.audio.maxVolume": "最高音量",
   "settings.option.audio.quality": "音訊品質", // Dropdown
   "settings.header.audio.quality.hireslossless": "高品質無損壓縮",
   "settings.header.audio.quality.hireslossless.description": "（高達 24-bit/192 kHz）",