diff --git a/app/js/login/login.js b/app/js/login/login.js
index a91acfc6..911c08ed 100644
--- a/app/js/login/login.js
+++ b/app/js/login/login.js
@@ -611,8 +611,9 @@ function multiSelector(parseC) {
 		$('#add-acct-sel').append(
 			'<option value="noauth">' +
 			lang.lang_login_noauth +
-			`</option>${webview ? `<option value="webview">TweetDeck</option>` : ''}`
+			`</option><option value="webview">TweetDeck</option>`
 		)
+		if (!webview) $('#webview-add').append(`<br /><span style="font-size: 0.7rem">${lang.lang_setting_webview_warn}</span>`)
 		$('#dir-acct-sel').append('<option value="noauth">' + lang.lang_login_noauth + '</option>')
 	}
 	$('select').formSelect()
diff --git a/app/view/make/language/en/main.json b/app/view/make/language/en/main.json
index 0ee4fcc8..788ef9a7 100644
--- a/app/view/make/language/en/main.json
+++ b/app/view/make/language/en/main.json
@@ -166,6 +166,7 @@
     "lang_spotify_acct": "Connect TheDesk to Spotify",
     "lang_spotify_np": "Done:templete of NowPlaying",
     "lang_setting_npprovide": "NowPlaying provider:{{set}}",
+    "lang_setting_webview_warn": "Please turn WebView on at System Preferences of TheDesk to add TweetDeck as a column",
     "lang_hisdata_frcreq": "Required Mastodon 2.4.3 and above",
     "lang_hisdata_frcwarn": "Unfollow accounts will be shown.",
     "lang_hisdata_taketime": "It will take 30s ~ several minutes",
diff --git a/app/view/make/language/ja-KS/main.json b/app/view/make/language/ja-KS/main.json
index 2f2e8eea..b05f4b2a 100644
--- a/app/view/make/language/ja-KS/main.json
+++ b/app/view/make/language/ja-KS/main.json
@@ -165,6 +165,7 @@
     "lang_spotify_acct": "まずアカウント連携をしてな",
     "lang_spotify_np": "NowPlayingするときのやつを変えたで",
     "lang_setting_npprovide": "NowPlayingのソースを{{set}}にしたで",
+    "lang_setting_webview_warn": "TweetDeckをカラムとして追加するには、TheDeskの環境設定でWebViewをオンにする必要があります。",
     "lang_hisdata_frcreq": "Mastodon 2.4.3~だけやで",
     "lang_hisdata_frcwarn": "非フォローやけど絡みある人らや。",
     "lang_hisdata_taketime": "30秒から数分かかることがあるで",
diff --git a/app/view/make/language/ja/main.json b/app/view/make/language/ja/main.json
index 2fd63646..20818bd5 100644
--- a/app/view/make/language/ja/main.json
+++ b/app/view/make/language/ja/main.json
@@ -167,6 +167,7 @@
     "lang_spotify_acct": "アカウント連携をしてください。",
     "lang_spotify_np": "NowPlaying文書を更新しました。",
     "lang_setting_npprovide": "NowPlayingのソースを{{set}}に設定しました。",
+    "lang_setting_webview_warn": "TweetDeckをカラムとして追加するには、TheDeskの環境設定でWebViewをオンにする必要があります。",
     "lang_hisdata_frcreq": "Mastodon 2.4.3~が必要です",
     "lang_hisdata_frcwarn": "非フォローだけど絡みがある時に表示されます。",
     "lang_hisdata_taketime": "30秒から数分かかります",