diff --git a/addons/mail/static/src/models/activity/activity.js b/addons/mail/static/src/models/activity/activity.js
index 091a5db4fe5..36334f00735 100644
--- a/addons/mail/static/src/models/activity/activity.js
+++ b/addons/mail/static/src/models/activity/activity.js
@@ -290,7 +290,7 @@ registerModel({
         thread: many2one('mail.thread', {
             inverse: 'activities',
         }),
-        type: many2one('mail.activity_type', {
+        type: many2one('ActivityType', {
             inverse: 'activities',
         }),
     },
diff --git a/addons/mail/static/src/models/activity_type/activity_type.js b/addons/mail/static/src/models/activity_type/activity_type.js
index 986f34e42c2..cd760321a04 100644
--- a/addons/mail/static/src/models/activity_type/activity_type.js
+++ b/addons/mail/static/src/models/activity_type/activity_type.js
@@ -4,7 +4,7 @@ import { registerModel } from '@mail/model/model_core';
 import { attr, one2many } from '@mail/model/model_field';
 
 registerModel({
-    name: 'mail.activity_type',
+    name: 'ActivityType',
     identifyingFields: ['id'],
     fields: {
         activities: one2many('Activity', {