diff --git a/project_assignees/models/project_task.py b/project_assignees/models/project_task.py
index 8140799..2fda049 100644
--- a/project_assignees/models/project_task.py
+++ b/project_assignees/models/project_task.py
@@ -1,5 +1,5 @@
 
-from odoo import models, fields
+from odoo import models, fields, api
 
 
 class Task(models.Model):
@@ -7,3 +7,14 @@ class Task(models.Model):
 
     assignee_ids = fields.Many2many('res.users', 'assignee_ids_rel', string='Assignees', tracking=True)
 
+    @api.model
+    def create(self, vals):
+        '''
+        assigned project manager to the task if nobody else is assigned to
+        '''
+        assignee_ids = vals.get('assignee_ids', [])
+        project_id = vals.get('project_id', [])
+        if project_id and assignee_ids and not assignee_ids[0][2]:
+            project = self.env['project.project'].browse(project_id)
+            assignee_ids[0][2] = str(project.user_id.id)
+        return super().create(vals)
\ No newline at end of file