diff --git a/addons/project_issue/project_issue.py b/addons/project_issue/project_issue.py
index 15039912ce7..8914f1ebda2 100644
--- a/addons/project_issue/project_issue.py
+++ b/addons/project_issue/project_issue.py
@@ -464,7 +464,9 @@ class project(osv.Model):
     _inherit = "project.project"
 
     def _get_alias_models(self, cr, uid, context=None):
-        return [('project.task', "Tasks"), ("project.issue", "Issues")]
+        res = super(project, self)._get_alias_models(cr, uid, context=context)
+        res.append(("project.issue", "Issues"))
+        return res
 
     def _issue_count(self, cr, uid, ids, field_name, arg, context=None):
         Issue = self.pool['project.issue']
diff --git a/addons/project_issue/project_issue_view.xml b/addons/project_issue/project_issue_view.xml
index 79a4072f2dd..596aaa01135 100644
--- a/addons/project_issue/project_issue_view.xml
+++ b/addons/project_issue/project_issue_view.xml
@@ -294,6 +294,9 @@
             <field name="model">project.project</field>
             <field name="inherit_id" ref="project.edit_project"/>
             <field name="arch" type="xml">
+                <xpath expr='//field[@name="use_tasks"]' position='attributes'>
+                    <attribute name="on_change">on_change_use_tasks_or_issues(use_tasks, use_issues)</attribute>
+                </xpath>
                 <xpath expr='//div[@name="options_active"]' position='inside'>
                     <field name="use_issues" class="oe_inline"
                             on_change="on_change_use_tasks_or_issues(use_tasks, use_issues)"/>