diff --git a/addons/mail/models/mail_activity.py b/addons/mail/models/mail_activity.py
index 6342a2d359d..15bbeca6d3a 100644
--- a/addons/mail/models/mail_activity.py
+++ b/addons/mail/models/mail_activity.py
@@ -89,7 +89,7 @@ class MailActivity(models.Model):
         ('today', 'Today'),
         ('planned', 'Planned')], 'State',
         compute='_compute_state')
-    recommended_activity_type_id = fields.Many2one('mail.activity.type', string="Recommended Activity Type", readonly=True)
+    recommended_activity_type_id = fields.Many2one('mail.activity.type', string="Recommended Activity Type")
     previous_activity_type_id = fields.Many2one('mail.activity.type', string='Previous Activity Type', readonly=True)
     has_recommended_activities = fields.Boolean(
         'Next activities available',