diff --git a/packages/frontend/src/components/MkUserSetupDialog.Profile.vue b/packages/frontend/src/components/MkUserSetupDialog.Profile.vue
index 3194641cdb7e..e61ecd0f84f8 100644
--- a/packages/frontend/src/components/MkUserSetupDialog.Profile.vue
+++ b/packages/frontend/src/components/MkUserSetupDialog.Profile.vue
@@ -51,6 +51,11 @@ watch(name, () => {
 		// 空文字列をnullにしたいので??は使うな
 		// eslint-disable-next-line @typescript-eslint/prefer-nullish-coalescing
 		name: name.value || null,
+	}, undefined, {
+		'SCREEN_NAME_CONTAINS_PROHIBITED_WORDS': {
+			title: i18n.ts.screenNameContainsProhibitedWords,
+			text: i18n.ts.screenNameContainsProhibitedWordsDescription,
+		},
 	});
 });
 
diff --git a/packages/frontend/src/os.ts b/packages/frontend/src/os.ts
index 7b4bedd47a10..b05155633f2b 100644
--- a/packages/frontend/src/os.ts
+++ b/packages/frontend/src/os.ts
@@ -35,6 +35,7 @@ export const apiWithDialog = (<E extends keyof Misskey.Endpoints = keyof Misskey
 	endpoint: E,
 	data: P = {} as any,
 	token?: string | null | undefined,
+	customErrors?: Record<string, { title?: string; text: string; }>,
 ) => {
 	const promise = misskeyApi(endpoint, data, token);
 	promiseDialog(promise, null, async (err) => {
@@ -77,9 +78,9 @@ export const apiWithDialog = (<E extends keyof Misskey.Endpoints = keyof Misskey
 		} else if (err.message.startsWith('Unexpected token')) {
 			title = i18n.ts.gotInvalidResponseError;
 			text = i18n.ts.gotInvalidResponseErrorDescription;
-		} else if (err.code === 'SCREEN_NAME_CONTAINS_PROHIBITED_WORDS') {
-			title = i18n.ts.screenNameContainsProhibitedWords;
-			text = i18n.ts.screenNameContainsProhibitedWordsDescription;
+		} else if (customErrors && customErrors[err.code] != null) {
+			title = customErrors[err.code].title;
+			text = customErrors[err.code].text;
 		}
 		alert({
 			type: 'error',
@@ -89,7 +90,7 @@ export const apiWithDialog = (<E extends keyof Misskey.Endpoints = keyof Misskey
 	});
 
 	return promise;
-}) as typeof misskeyApi;
+});
 
 export function promiseDialog<T extends Promise<any>>(
 	promise: T,
diff --git a/packages/frontend/src/pages/settings/profile.vue b/packages/frontend/src/pages/settings/profile.vue
index 2d26638e1007..a185f8f671a2 100644
--- a/packages/frontend/src/pages/settings/profile.vue
+++ b/packages/frontend/src/pages/settings/profile.vue
@@ -206,6 +206,11 @@ function save() {
 		lang: profile.lang || null,
 		isBot: !!profile.isBot,
 		isCat: !!profile.isCat,
+	}, undefined, {
+		'SCREEN_NAME_CONTAINS_PROHIBITED_WORDS': {
+			title: i18n.ts.screenNameContainsProhibitedWords,
+			text: i18n.ts.screenNameContainsProhibitedWordsDescription,
+		},
 	});
 	globalEvents.emit('requestClearPageCache');
 	claimAchievement('profileFilled');