diff --git a/erpnext_china/erpnext_china/report/fin_balance_sheet/fin_balance_sheet.py b/erpnext_china/erpnext_china/report/fin_balance_sheet/fin_balance_sheet.py
index daef393..f90891e 100644
--- a/erpnext_china/erpnext_china/report/fin_balance_sheet/fin_balance_sheet.py
+++ b/erpnext_china/erpnext_china/report/fin_balance_sheet/fin_balance_sheet.py
@@ -643,7 +643,7 @@ def get_opening_balances(filters):
   sig = inspect.signature(original_get_opening_balances)
   parameters = sig.parameters
   num_params = len(parameters)
-  if num_params == 2:
+  if num_params >  1:
       return original_get_opening_balances(filters, 0)
   else:
       return original_get_opening_balances(filters)
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