diff --git a/addons/hr_timesheet/report/hr_timesheet_report.py b/addons/hr_timesheet/report/hr_timesheet_report.py
index 89a599c7539..c5f5f2d6af3 100644
--- a/addons/hr_timesheet/report/hr_timesheet_report.py
+++ b/addons/hr_timesheet/report/hr_timesheet_report.py
@@ -39,7 +39,7 @@ class hr_timesheet_report(osv.osv):
     def _from(self):
         from_str = """
                 account_analytic_line as aal
-                    left join hr_analytic_timesheet as hat ON (hat.line_id=aal.id)
+                    inner join hr_analytic_timesheet as hat ON (hat.line_id=aal.id)
         """
         return from_str