diff --git a/app/assets/javascripts/discourse/app/helpers/decorate-username-selector.js b/app/assets/javascripts/discourse/app/helpers/decorate-username-selector.js
index c8fb7b6812e..d7558359a09 100644
--- a/app/assets/javascripts/discourse/app/helpers/decorate-username-selector.js
+++ b/app/assets/javascripts/discourse/app/helpers/decorate-username-selector.js
@@ -10,7 +10,7 @@ export function resetUsernameDecorators() {
   usernameDecorators = [];
 }
 
-export default registerUnbound("decorate-username-selector", (username) => {
+export function decorateUsername(username) {
   const decorations = [];
 
   usernameDecorators.forEach((decorator) => {
@@ -18,4 +18,8 @@ export default registerUnbound("decorate-username-selector", (username) => {
   });
 
   return decorations.length ? htmlSafe(decorations.join("")) : "";
+}
+
+export default registerUnbound("decorate-username-selector", (username) => {
+  return decorateUsername(username);
 });