diff --git a/browser/main/modals/PreferencesModal/UiTab.js b/browser/main/modals/PreferencesModal/UiTab.js
index d0b2026d..ee1b892f 100644
--- a/browser/main/modals/PreferencesModal/UiTab.js
+++ b/browser/main/modals/PreferencesModal/UiTab.js
@@ -654,6 +654,7 @@ class UiTab extends React.Component {
                     lint: true,
                     gutters: ['CodeMirror-lint-markers']
                   }} />
+                <p styleName='note-for-keymap'>{i18n.__(`⚠️ Please reload boostnote after you change the Custom MarkdownLint rules`)}</p>
               </div>
             </div>
           </div>
diff --git a/locales/ja.json b/locales/ja.json
index e1dc553b..42e7644c 100644
--- a/locales/ja.json
+++ b/locales/ja.json
@@ -80,6 +80,7 @@
 	"Matching character triples": "自動補完する３文字括弧の列記",
 	"Exploding character pairs": "改行時に空行を挿入する括弧ペアの列記",
 	"Custom MarkdownLint Rules": "カスタムMarkdownLintルール",
+	"⚠️ Please reload boostnote after you change the Custom MarkdownLint rules": "⚠️ カスタムMarkdownLintルール変更後は Boostnote をリロードしてください",
 	"Preview": "プレビュー",
 	"Preview Font Size": "プレビュー時フォントサイズ",
 	"Preview Font Family": "プレビュー時フォント",