diff --git a/.changeset/pink-pens-march.md b/.changeset/pink-pens-march.md
new file mode 100644
index 0000000000000..2f0b4d63ea55d
--- /dev/null
+++ b/.changeset/pink-pens-march.md
@@ -0,0 +1,5 @@
+---
+'@rocket.chat/meteor': patch
+---
+
+Fixes reactivity when creating a federated room, that was wrongly showing Join button on composer, requiring a reload or change of route to be able to send a message.
diff --git a/apps/meteor/app/lib/server/functions/createRoom.ts b/apps/meteor/app/lib/server/functions/createRoom.ts
index ea5acce5dfd3c..0ef03ee7b85b1 100644
--- a/apps/meteor/app/lib/server/functions/createRoom.ts
+++ b/apps/meteor/app/lib/server/functions/createRoom.ts
@@ -53,6 +53,7 @@ async function createUsersSubscriptions({
 		await syncRoomRolePriorityForUserAndRoom(owner._id, room._id, ['owner']);
 
 		if (insertedId) {
+			await notifyOnSubscriptionChangedById(insertedId, 'inserted');
 			await notifyOnRoomChanged(room, 'inserted');
 		}