diff --git a/addons/project/models/project.py b/addons/project/models/project.py
index b0fea1b5869..efe4a6f313b 100644
--- a/addons/project/models/project.py
+++ b/addons/project/models/project.py
@@ -2337,7 +2337,7 @@ class Task(models.Model):
             action['res_id'] = self.dependent_ids.id
             action['views'] = [(False, 'form')]
         else:
-            action['domain'] = [('depend_on_ids', '=', self.id)],
+            action['domain'] = [('depend_on_ids', '=', self.id)]
             action['name'] = _('Dependent Tasks')
             action['view_mode'] = 'tree,form,kanban,calendar,pivot,graph,activity'
         return action