diff --git a/locales/en.json b/locales/en.json
index 19203c666..abbfb596d 100644
--- a/locales/en.json
+++ b/locales/en.json
@@ -113,6 +113,17 @@
 			"mk-donation-home-widget": {
 				"title": "Donation",
 				"text": "To manage Misskey, we spend money for our domain, server, etc.. There's no incomes for us, so we need your tip. If you're interested, contact {}. Thank you for your contribution!"
+			},
+			"mk-repost-form": {
+				"quote": "Quote...",
+				"cancel": "Cancel",
+				"repost": "Repost",
+				"reposting": "Reposting...",
+				"success": "Reposted!",
+				"failure": "Repost failed"
+			},
+			"mk-repost-form-window": {
+				"title": "Are you sure you want to repost this post?"
 			}
 		}
 	}
diff --git a/locales/ja.json b/locales/ja.json
index b24517d91..f9abedad9 100644
--- a/locales/ja.json
+++ b/locales/ja.json
@@ -113,6 +113,17 @@
 			"mk-donation-home-widget": {
 				"title": "寄付のお願い",
 				"text": "Misskeyの運営にはドメイン、サーバー等のコストが掛かります。Misskeyは広告を掲載したりしないため、収入を皆様からの寄付に頼っています。もしご興味があれば、{}までご連絡ください。ご協力ありがとうございます。"
+			},
+			"mk-repost-form": {
+				"quote": "引用する...",
+				"cancel": "キャンセル",
+				"repost": "Repost",
+				"reposting": "しています...",
+				"success": "Repostしました！",
+				"failure": "Repostできませんでした"
+			},
+			"mk-repost-form-window": {
+				"title": "この投稿をRepostしますか？"
 			}
 		}
 	}
diff --git a/src/web/app/desktop/tags/repost-form-window.tag b/src/web/app/desktop/tags/repost-form-window.tag
index 0f2a139fe..e9a6a58b7 100644
--- a/src/web/app/desktop/tags/repost-form-window.tag
+++ b/src/web/app/desktop/tags/repost-form-window.tag
@@ -1,7 +1,7 @@
 <mk-repost-form-window>
 	<mk-window ref="window" is-modal={ true }>
 		<yield to="header">
-			<i class="fa fa-retweet"></i>この投稿をRepostしますか？
+			<i class="fa fa-retweet"></i>%i18n:desktop.tags.mk-repost-form-window.title%
 		</yield>
 		<yield to="content">
 			<mk-repost-form ref="form" post={ parent.opts.post }></mk-repost-form>
diff --git a/src/web/app/desktop/tags/repost-form.tag b/src/web/app/desktop/tags/repost-form.tag
index b7a25fc1d..19027e5af 100644
--- a/src/web/app/desktop/tags/repost-form.tag
+++ b/src/web/app/desktop/tags/repost-form.tag
@@ -2,9 +2,9 @@
 	<mk-post-preview post={ opts.post }></mk-post-preview>
 	<virtual if={ !quote }>
 		<footer>
-			<a class="quote" if={ !quote } onclick={ onquote }>引用する...</a>
-			<button class="cancel" onclick={ cancel }>キャンセル</button>
-			<button class="ok" onclick={ ok } disabled={ wait }>{ wait ? 'しています...' : 'Repost' }</button>
+			<a class="quote" if={ !quote } onclick={ onquote }>%i18n:desktop.tags.mk-repost-form.quote%</a>
+			<button class="cancel" onclick={ cancel }>%i18n:desktop.tags.mk-repost-form.cancel%</button>
+			<button class="ok" onclick={ ok } disabled={ wait }>{ wait ? '%i18n:desktop.tags.mk-repost-form.reposting%' : '%i18n:desktop.tags.mk-repost-form.repost%' }</button>
 		</footer>
 	</virtual>
 	<virtual if={ quote }>
@@ -102,9 +102,9 @@
 				repost_id: this.opts.post.id
 			}).then(data => {
 				this.trigger('posted');
-				notify('Repostしました！');
+				notify('%i18n:desktop.tags.mk-repost-form.success%');
 			}).catch(err => {
-				notify('Repostできませんでした');
+				notify('%i18n:desktop.tags.mk-repost-form.failure%');
 			}).then(() => {
 				this.update({
 					wait: false