diff --git a/app/assets/javascripts/discourse/tests/fixtures/concerns/notification-types.js b/app/assets/javascripts/discourse/tests/fixtures/concerns/notification-types.js
index 9c2198665f6..eb643642964 100644
--- a/app/assets/javascripts/discourse/tests/fixtures/concerns/notification-types.js
+++ b/app/assets/javascripts/discourse/tests/fixtures/concerns/notification-types.js
@@ -33,4 +33,6 @@ export const NOTIFICATION_TYPES = {
   event_invitation: 28,
   chat_mention: 29,
   chat_message: 30,
+  chat_invitation: 31,
+  chat_group_mention: 32,
 };
diff --git a/app/models/notification.rb b/app/models/notification.rb
index 2b564db806f..98722001866 100644
--- a/app/models/notification.rb
+++ b/app/models/notification.rb
@@ -108,7 +108,8 @@ class Notification < ActiveRecord::Base
                         event_invitation: 28,
                         chat_mention: 29,
                         chat_message: 30,
-                        chat_invitation: 31
+                        chat_invitation: 31,
+                        chat_group_mention: 32
                        )
   end
 
diff --git a/spec/requests/api/schemas/json/site_response.json b/spec/requests/api/schemas/json/site_response.json
index f9d09bc9fd7..b1a2a0c325b 100644
--- a/spec/requests/api/schemas/json/site_response.json
+++ b/spec/requests/api/schemas/json/site_response.json
@@ -100,6 +100,9 @@
         },
         "chat_invitation": {
           "type": "integer"
+        },
+        "chat_group_mention": {
+          "type": "integer"
         }
       },
       "required": [
@@ -131,7 +134,10 @@
         "votes_released",
         "event_reminder",
         "event_invitation",
-        "chat_mention"
+        "chat_mention",
+        "chat_message",
+        "chat_invitation",
+        "chat_group_mention"
       ]
     },
     "post_types": {