diff --git a/erpnext/hr/doctype/salary_slip/salary_slip.py b/erpnext/hr/doctype/salary_slip/salary_slip.py
index 1d176133814..356104e69c2 100644
--- a/erpnext/hr/doctype/salary_slip/salary_slip.py
+++ b/erpnext/hr/doctype/salary_slip/salary_slip.py
@@ -231,12 +231,12 @@ class SalarySlip(TransactionBase):
 
 		holidays = self.get_holidays_for_employee(self.start_date, self.end_date)
 		working_days = date_diff(self.end_date, self.start_date) + 1
+		actual_lwp = self.calculate_lwp(holidays, working_days)
 		if not cint(frappe.db.get_value("HR Settings", None, "include_holidays_in_total_working_days")):
 			working_days -= len(holidays)
 			if working_days < 0:
 				frappe.throw(_("There are more holidays than working days this month."))
 
-		actual_lwp = self.calculate_lwp(holidays, working_days)
 		if not lwp:
 			lwp = actual_lwp
 		elif lwp != actual_lwp: