diff --git a/assets/javascripts/wizard-custom.js b/assets/javascripts/wizard-custom.js
index d0fef99a..625a1542 100644
--- a/assets/javascripts/wizard-custom.js
+++ b/assets/javascripts/wizard-custom.js
@@ -3,6 +3,7 @@
 //= require discourse/app/mixins/singleton
 //= require discourse/app/mixins/upload
 //= require discourse/app/mixins/composer-upload
+//= require discourse/app/mixins/textarea-text-manipulation
 
 //= require discourse/app/adapters/rest