diff --git a/backend/src/middleware/chatMiddleware.ts b/backend/src/middleware/chatMiddleware.ts
index c28d6a70d..8ae252e13 100644
--- a/backend/src/middleware/chatMiddleware.ts
+++ b/backend/src/middleware/chatMiddleware.ts
@@ -54,4 +54,7 @@ export default {
   Mutation: {
     CreateRoom: roomProperties,
   },
+  Subscription: {
+    chatMessageAdded: messageProperties,
+  },
 }
diff --git a/backend/src/schema/resolvers/messages.spec.ts b/backend/src/schema/resolvers/messages.spec.ts
index 1679b0c34..83d9fdc6b 100644
--- a/backend/src/schema/resolvers/messages.spec.ts
+++ b/backend/src/schema/resolvers/messages.spec.ts
@@ -117,7 +117,7 @@ describe('Message', () => {
         })
 
         describe('user chats in room', () => {
-          it('returns the message and publishes subscription', async () => {
+          it('returns the message and publishes subscriptions', async () => {
             await expect(
               mutate({
                 mutation: createMessageMutation(),
@@ -146,6 +146,20 @@ describe('Message', () => {
               roomCountUpdated: '1',
               userId: 'other-chatting-user',
             })
+            expect(pubsubSpy).toBeCalledWith('CHAT_MESSAGE_ADDED', {
+              chatMessageAdded: expect.objectContaining({
+                id: expect.any(String),
+                content: 'Some nice message to other chatting user',
+                senderId: 'chatting-user',
+                username: 'Chatting User',
+                avatar: expect.any(String),
+                date: expect.any(String),
+                saved: true,
+                distributed: false,
+                seen: false,
+              }),
+              userId: 'other-chatting-user',
+            })
           })
 
           describe('room is updated as well', () => {