1 files changed, 9 insertions, 1 deletions
diff --git a/app/assets/javascripts/content_editor/extensions/superscript.js b/app/assets/javascripts/content_editor/extensions/superscript.js
index 3eb7d86d90d..6cd814977ea 100644
--- a/app/assets/javascripts/content_editor/extensions/superscript.js
+++ b/app/assets/javascripts/content_editor/extensions/superscript.js
@@ -1 +1,9 @@
-export { Superscript as default } from '@tiptap/extension-superscript';
+import { markInputRule } from '@tiptap/core';
+import { Superscript } from '@tiptap/extension-superscript';
+import { markInputRegex, extractMarkAttributesFromMatch } from '../services/mark_utils';
+
+export default Superscript.extend({
+  addInputRules() {
+    return [markInputRule(markInputRegex('sup'), this.type, extractMarkAttributesFromMatch)];
+  },
+});