diff --git a/locales/index.d.ts b/locales/index.d.ts
index 1fd3e739e7..3ed47f414f 100644
--- a/locales/index.d.ts
+++ b/locales/index.d.ts
@@ -6418,7 +6418,7 @@ export interface Locale extends ILocale {
          */
         "aboutInstance": string;
         /**
-         * A longer description that will be displayed in the 'Instance Information' page. Supports HTML.
+         * A longer description that will be displayed in the 'Instance Information' page, going in place of the regular instance description. Supports HTML.
          */
         "aboutInstanceDescription": string;
     };
diff --git a/packages/backend/migration/1752607599852-split-descriptions.js b/packages/backend/migration/1752607599852-split-descriptions.js
index b280432574..7c00db68a4 100644
--- a/packages/backend/migration/1752607599852-split-descriptions.js
+++ b/packages/backend/migration/1752607599852-split-descriptions.js
@@ -3,7 +3,6 @@ export class SplitDescriptions1752607599852 {
 
 	async up(queryRunner) {
 		await queryRunner.query(`ALTER TABLE "meta" ADD COLUMN "about" TEXT`);
-		await queryRunner.query(`UPDATE "meta" SET "about" = "description"`);
 	}
 
 	async down(queryRunner) {
diff --git a/packages/frontend/src/components/MkVisitorDashboard.vue b/packages/frontend/src/components/MkVisitorDashboard.vue
index d0c9435ebd..ed63f43574 100644
--- a/packages/frontend/src/components/MkVisitorDashboard.vue
+++ b/packages/frontend/src/components/MkVisitorDashboard.vue
@@ -18,7 +18,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 				<!-- eslint-disable-next-line vue/no-v-html -->
 				<div v-html="sanitizeHtml(instance.description) || i18n.ts.headlineMisskey"></div>
 			</div>
-			<div v-if="instance.description !== instance.about" :class=$style.showMore>
+			<div v-if="instance.about && instance.description !== instance.about" :class=$style.showMore>
 				<p><a href="/about">{{ i18n.ts.showMore }}</a></p>
 			</div>
 			<div v-if="instance.disableRegistration || instance.federation !== 'all'" :class="$style.mainWarn" class="_gaps_s">
diff --git a/packages/frontend/src/pages/about.overview.vue b/packages/frontend/src/pages/about.overview.vue
index 03c47ba01f..b1677d160c 100644
--- a/packages/frontend/src/pages/about.overview.vue
+++ b/packages/frontend/src/pages/about.overview.vue
@@ -16,7 +16,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 
 	<MkKeyValue>
 		<template #key>{{ i18n.ts.about }}</template>
-		<template #value><div v-html="sanitizeHtml(instance.about)"></div></template>
+		<template #value><div v-html="sanitizeHtml(instance.about || instance.description)"></div></template>
 	</MkKeyValue>
 
 	<FormSection>
diff --git a/sharkey-locales/en-US.yml b/sharkey-locales/en-US.yml
index b81d4f91c8..2e562326c3 100644
--- a/sharkey-locales/en-US.yml
+++ b/sharkey-locales/en-US.yml
@@ -217,7 +217,7 @@ _serverSettings:
   inquiryUrl: "Contact URL"
   inquiryUrlDescription: "Specify the URL of a web page that contains a contact form or the instance operators' contact information."
   aboutInstance: "About instance"
-  aboutInstanceDescription: "A longer description that will be displayed in the 'Instance Information' page. Supports HTML."
+  aboutInstanceDescription: "A longer description that will be displayed in the 'Instance Information' page, going in place of the regular instance description. Supports HTML."
 _accountMigration:
   moveAccountDescription: "This will migrate your account to a different one.\n　・Followers from this account will automatically be migrated to the new account\n　・This account will unfollow all users it is currently following\n　・You will be unable to create new notes etc. on this account\n\nWhile migration of followers is automatic, you must manually prepare some steps to migrate the list of users you are following. To do so, carry out a follows export that you will later import on the new account in the settings menu. The same procedure applies to your lists as well as your muted and blocked users.\n\n(This explanation applies to Sharkey v13.12.0 and later. Other ActivityPub software, such as Mastodon, might function differently.)"
 _achievements:
diff --git a/sharkey-locales/pt-PT.yml b/sharkey-locales/pt-PT.yml
index da8a89c58c..02d2caf6a4 100644
--- a/sharkey-locales/pt-PT.yml
+++ b/sharkey-locales/pt-PT.yml
@@ -12,4 +12,4 @@ attributionDomainsDescription: "Uma lista de domínios cujo conteúdo pode ser a
 writtenBy: "Escrito por {user}"
 _serverSettings:
   aboutInstance: "Sobre a instância"
-  aboutInstanceDescription: "Uma descrição maior que irá aparecer na página 'Informações da Instância'. Aceita HTML."
+  aboutInstanceDescription: "Uma descrição maior que irá aparecer na página 'Informações da Instância', substituindo a descrição da instância. Aceita HTML."