diff --git a/assets/javascripts/discourse-assign/controllers/assign-user.js b/assets/javascripts/discourse-assign/controllers/assign-user.js
index 88084a0..57d8fe3 100644
--- a/assets/javascripts/discourse-assign/controllers/assign-user.js
+++ b/assets/javascripts/discourse-assign/controllers/assign-user.js
@@ -72,7 +72,7 @@ export default Controller.extend(ModalFunctionality, {
   },
 
   @action
-  handleTextAreaKeyUp(value, event) {
+  handleTextAreaKeydown(value, event) {
     if ((event.ctrlKey || event.metaKey) && event.key === "Enter") {
       this.assign();
     }
diff --git a/assets/javascripts/discourse/templates/modal/assign-user.hbs b/assets/javascripts/discourse/templates/modal/assign-user.hbs
index 121aa43..939daa9 100644
--- a/assets/javascripts/discourse/templates/modal/assign-user.hbs
+++ b/assets/javascripts/discourse/templates/modal/assign-user.hbs
@@ -52,7 +52,7 @@
       <Textarea
         id={{"assign-modal-note"}}
         @value={{model.note}}
-        {{on "keyup" (action "handleTextAreaKeyUp")}}
+        {{on "keydown" (action "handleTextAreaKeydown")}}
       />
     </div>
   </div>