diff --git a/framework/core/js/src/admin/components/ExtensionPage.tsx b/framework/core/js/src/admin/components/ExtensionPage.tsx
index af4a1fa9d..fc673ea15 100644
--- a/framework/core/js/src/admin/components/ExtensionPage.tsx
+++ b/framework/core/js/src/admin/components/ExtensionPage.tsx
@@ -15,7 +15,7 @@ import ReadmeModal from './ReadmeModal';
 import RequestError from '../../common/utils/RequestError';
 import { Extension } from '../AdminApplication';
 import { IPageAttrs } from '../../common/components/Page';
-import Mithril from 'mithril';
+import type Mithril from 'mithril';
 import extractText from '../../common/utils/extractText';
 
 export interface ExtensionPageAttrs extends IPageAttrs {