diff --git a/addons/hr_timesheet/models/project_project.py b/addons/hr_timesheet/models/project_project.py
index 6e0a54c96e6..c5b200f3396 100644
--- a/addons/hr_timesheet/models/project_project.py
+++ b/addons/hr_timesheet/models/project_project.py
@@ -96,12 +96,16 @@ class Project(models.Model):
             raise ValueError(_('Invalid operator: %s') % operator)
 
         query = """
-            SELECT P.id
-              FROM project_project P
-         LEFT JOIN project_task T ON P.id = T.project_id
-             WHERE p.allocated_hours != 0 AND p.allow_timesheets
-          GROUP BY P.id
-            HAVING P.allocated_hours - SUM(T.effective_hours) < 0
+            SELECT Project.id
+              FROM project_project AS Project
+              JOIN project_task AS Task
+                ON Project.id = Task.project_id
+             WHERE Project.allocated_hours > 0
+               AND Project.allow_timesheets = TRUE
+               AND Task.parent_id IS NULL
+               AND Task.is_closed IS FALSE
+          GROUP BY Project.id
+            HAVING Project.allocated_hours - SUM(Task.effective_hours) < 0
         """
         if (operator == '=' and value is True) or (operator == '!=' and value is False):
             operator_new = 'inselect'