diff --git a/erpnext/accounts/report/financial_statements.py b/erpnext/accounts/report/financial_statements.py
index 3785ebf..d5b8cdb 100644
--- a/erpnext/accounts/report/financial_statements.py
+++ b/erpnext/accounts/report/financial_statements.py
@@ -14,7 +14,7 @@
 from erpnext.accounts.report.utils import get_currency, convert_to_presentation_currency
 from erpnext.accounts.utils import get_fiscal_year
 from frappe import _
-from frappe.utils import (flt, getdate, get_first_day, add_months, add_days, formatdate, cstr)
+from frappe.utils import (flt, getdate, get_first_day, add_months, add_days, formatdate, cstr, cint)
 
 from six import itervalues
 from erpnext.accounts.doctype.accounting_dimension.accounting_dimension import get_accounting_dimensions, get_dimension_with_children
@@ -46,7 +46,7 @@
 	start_date = year_start_date
 	months = get_months(year_start_date, year_end_date)
 
-	for i in range(math.ceil(months / months_to_add)):
+	for i in range(cint(math.ceil(months / months_to_add))):
 		period = frappe._dict({
 			"from_date": start_date
 		})