diff --git a/packages/client/src/components/index.ts b/packages/client/src/components/index.ts
index 2340b228f..26bac6324 100644
--- a/packages/client/src/components/index.ts
+++ b/packages/client/src/components/index.ts
@@ -1,37 +1,58 @@
 import { App } from 'vue';
 
-import mfm from './global/misskey-flavored-markdown.vue';
-import a from './global/a.vue';
-import acct from './global/acct.vue';
-import avatar from './global/avatar.vue';
-import emoji from './global/emoji.vue';
-import userName from './global/user-name.vue';
-import ellipsis from './global/ellipsis.vue';
-import time from './global/time.vue';
-import url from './global/url.vue';
-import i18n from './global/i18n';
-import loading from './global/loading.vue';
-import error from './global/error.vue';
-import ad from './global/ad.vue';
-import header from './global/header.vue';
-import spacer from './global/spacer.vue';
-import stickyContainer from './global/sticky-container.vue';
+import Mfm from './global/misskey-flavored-markdown.vue';
+import MkA from './global/a.vue';
+import MkAcct from './global/acct.vue';
+import MkAvatar from './global/avatar.vue';
+import MkEmoji from './global/emoji.vue';
+import MkUserName from './global/user-name.vue';
+import MkEllipsis from './global/ellipsis.vue';
+import MkTime from './global/time.vue';
+import MkUrl from './global/url.vue';
+import I18n from './global/i18n';
+import MkLoading from './global/loading.vue';
+import MkError from './global/error.vue';
+import MkAd from './global/ad.vue';
+import MkHeader from './global/header.vue';
+import MkSpacer from './global/spacer.vue';
+import MkStickyContainer from './global/sticky-container.vue';
 
 export default function(app: App) {
-	app.component('I18n', i18n);
-	app.component('Mfm', mfm);
-	app.component('MkA', a);
-	app.component('MkAcct', acct);
-	app.component('MkAvatar', avatar);
-	app.component('MkEmoji', emoji);
-	app.component('MkUserName', userName);
-	app.component('MkEllipsis', ellipsis);
-	app.component('MkTime', time);
-	app.component('MkUrl', url);
-	app.component('MkLoading', loading);
-	app.component('MkError', error);
-	app.component('MkAd', ad);
-	app.component('MkHeader', header);
-	app.component('MkSpacer', spacer);
-	app.component('MkStickyContainer', stickyContainer);
+	app.component('I18n', I18n);
+	app.component('Mfm', Mfm);
+	app.component('MkA', MkA);
+	app.component('MkAcct', MkAcct);
+	app.component('MkAvatar', MkAvatar);
+	app.component('MkEmoji', MkEmoji);
+	app.component('MkUserName', MkUserName);
+	app.component('MkEllipsis', MkEllipsis);
+	app.component('MkTime', MkTime);
+	app.component('MkUrl', MkUrl);
+	app.component('MkLoading', MkLoading);
+	app.component('MkError', MkError);
+	app.component('MkAd', MkAd);
+	app.component('MkHeader', MkHeader);
+	app.component('MkSpacer', MkSpacer);
+	app.component('MkStickyContainer', MkStickyContainer);
+}
+
+declare module '@vue/runtime-core' {
+	export interface GlobalComponents {
+		I18n: typeof I18n;
+		Mfm: typeof Mfm;
+		MkA: typeof MkA;
+		MkAcct: typeof MkAcct;
+		MkAvatar: typeof MkAvatar;
+		MkEmoji: typeof MkEmoji;
+		MkUserName: typeof MkUserName;
+		MkEllipsis: typeof MkEllipsis;
+		MkTime: typeof MkTime;
+		MkUrl: typeof MkUrl;
+		MkLoading: typeof MkLoading;
+		MkError: typeof MkError;
+		MkAd: typeof MkAd;
+		MkHeader: typeof MkHeader;
+		MkSpacer: typeof MkSpacer;
+		MkStickyContainer: typeof MkStickyContainer;
+	}
 }