diff --git a/app/javascript/ui/MessageList.vue b/app/javascript/ui/MessageList.vue
index 9ce26fdcf..b7998ce03 100644
--- a/app/javascript/ui/MessageList.vue
+++ b/app/javascript/ui/MessageList.vue
@@ -94,6 +94,9 @@ onMounted(async () => {
   await Promise.all([
     store.dispatch('getConversation', conversationId.value),
     store.dispatch('fetchAllAttachments', conversationId.value),
+    // agents and teams power the @mention dropdown on private notes
+    store.dispatch('agents/get'),
+    store.dispatch('teams/get'),
   ]);
 
   await fetchConversationInbox();