diff --git a/erpnext/hr/doctype/process_payroll/process_payroll.py b/erpnext/hr/doctype/process_payroll/process_payroll.py
index 7741263..8448fa2 100644
--- a/erpnext/hr/doctype/process_payroll/process_payroll.py
+++ b/erpnext/hr/doctype/process_payroll/process_payroll.py
@@ -290,10 +290,8 @@
 @frappe.whitelist()
 def get_start_end_dates(payroll_frequency, start_date=None):
 	'''Returns dict of start and end dates for given payroll frequency based on start_date'''
-	if not payroll_frequency:
-		frappe.throw(_("Please set Payroll Frequency first"))
 
-	if payroll_frequency == "Monthly" or payroll_frequency == "Bimonthly":
+	if payroll_frequency == "Monthly" or payroll_frequency == "Bimonthly" or payroll_frequency == "":
 		fiscal_year = get_fiscal_year(start_date)[0]
 		month = "%02d" % getdate(start_date).month
 		m = get_month_details(fiscal_year, month)