diff --git a/src/i18n/locales/en-US/contacts.json b/src/i18n/locales/en-US/contacts.json
index 1aed4c3c..2b520358 100644
--- a/src/i18n/locales/en-US/contacts.json
+++ b/src/i18n/locales/en-US/contacts.json
@@ -49,6 +49,10 @@
     "score": "Score",
     "lastInteraction": "Last interaction",
     "sources": "Source chats",
+    "sourceType": {
+      "private": "Private",
+      "group": "Group"
+    },
     "aliases": "Aliases",
     "signals": "Interaction signals",
     "emptyTitle": "Select a contact",
diff --git a/src/i18n/locales/ja-JP/contacts.json b/src/i18n/locales/ja-JP/contacts.json
index 56212d15..322b6cf7 100644
--- a/src/i18n/locales/ja-JP/contacts.json
+++ b/src/i18n/locales/ja-JP/contacts.json
@@ -49,6 +49,10 @@
     "score": "総合スコア",
     "lastInteraction": "最終インタラクション",
     "sources": "元チャット",
+    "sourceType": {
+      "private": "個人",
+      "group": "グループ"
+    },
     "aliases": "別名",
     "signals": "やり取りのシグナル",
     "emptyTitle": "連絡先を選択",
diff --git a/src/i18n/locales/zh-CN/contacts.json b/src/i18n/locales/zh-CN/contacts.json
index 5ff2bdfc..306acd1d 100644
--- a/src/i18n/locales/zh-CN/contacts.json
+++ b/src/i18n/locales/zh-CN/contacts.json
@@ -49,6 +49,10 @@
     "score": "综合分",
     "lastInteraction": "最近互动",
     "sources": "来源会话",
+    "sourceType": {
+      "private": "私聊",
+      "group": "群聊"
+    },
     "aliases": "别名",
     "signals": "互动信号",
     "emptyTitle": "选择一个联系人",
diff --git a/src/i18n/locales/zh-TW/contacts.json b/src/i18n/locales/zh-TW/contacts.json
index b3997f7f..99266f2d 100644
--- a/src/i18n/locales/zh-TW/contacts.json
+++ b/src/i18n/locales/zh-TW/contacts.json
@@ -49,6 +49,10 @@
     "score": "綜合分",
     "lastInteraction": "最近互動",
     "sources": "來源會話",
+    "sourceType": {
+      "private": "私聊",
+      "group": "群聊"
+    },
     "aliases": "別名",
     "signals": "互動訊號",
     "emptyTitle": "選擇一個聯絡人",
diff --git a/src/pages/contacts/index.vue b/src/pages/contacts/index.vue
index d348f483..b801afd9 100644
--- a/src/pages/contacts/index.vue
+++ b/src/pages/contacts/index.vue
@@ -674,7 +674,11 @@ function syncScroll(pool: ContactPoolTab, e: Event) {
                       <span
                         class="flex items-center gap-1 text-[10px] font-bold text-gray-400 transition group-hover/item:text-pink-500 dark:text-gray-500"
                       >
-                        {{ source.type === 'private' ? '私聊' : '群聊' }}
+                        {{
+                          source.type === 'private'
+                            ? t('contacts.detail.sourceType.private')
+                            : t('contacts.detail.sourceType.group')
+                        }}
                         <UIcon
                           name="i-lucide-arrow-up-right"
                           class="h-3 w-3 transition-transform group-hover/item:translate-x-0.5 group-hover/item:-translate-y-0.5"