diff --git a/addons/hr_payroll/report/report_payslip_details.py b/addons/hr_payroll/report/report_payslip_details.py
index 13867322a1d..1e9839eaa6f 100644
--- a/addons/hr_payroll/report/report_payslip_details.py
+++ b/addons/hr_payroll/report/report_payslip_details.py
@@ -37,6 +37,7 @@ class payslip_details_report(report_sxw.rml_parse):
     def get_details_by_rule_category(self, obj):
         payslip_line = self.pool.get('hr.payslip.line')
         rule_cate_obj = self.pool.get('hr.salary.rule.category')
+
         def get_recursive_parent(rule_categories):
             if not rule_categories:
                 return []