diff --git a/locales/ja-JP.yml b/locales/ja-JP.yml
index c1b2b0377..adc42b96d 100644
--- a/locales/ja-JP.yml
+++ b/locales/ja-JP.yml
@@ -1045,7 +1045,7 @@ admin/views/instance.vue:
   instance: "インスタンス"
   instance-name: "インスタンス名"
   instance-description: "インスタンスの紹介"
-  domain: "ドメイン"
+  host: "ホスト"
   banner-url: "バナー画像URL"
   languages: "インスタンスの対象言語"
   languages-desc: "スペースで区切って複数設定できます。"
diff --git a/src/client/app/admin/views/instance.vue b/src/client/app/admin/views/instance.vue
index 503776f5c..c2a206037 100644
--- a/src/client/app/admin/views/instance.vue
+++ b/src/client/app/admin/views/instance.vue
@@ -3,7 +3,7 @@
 	<ui-card>
 		<div slot="title"><fa icon="cog"/> {{ $t('instance') }}</div>
 		<section class="fit-top fit-bottom">
-			<ui-input :value="host" readonly>{{ $t('domain') }}</ui-input>
+			<ui-input :value="host" readonly>{{ $t('host') }}</ui-input>
 			<ui-input v-model="name">{{ $t('instance-name') }}</ui-input>
 			<ui-textarea v-model="description">{{ $t('instance-description') }}</ui-textarea>
 			<ui-input v-model="bannerUrl"><i slot="icon"><fa icon="link"/></i>{{ $t('banner-url') }}</ui-input>