diff --git a/erpnext/selling/doctype/customer/customer.py b/erpnext/selling/doctype/customer/customer.py
index 93d4832..911fe51 100644
--- a/erpnext/selling/doctype/customer/customer.py
+++ b/erpnext/selling/doctype/customer/customer.py
@@ -184,10 +184,10 @@
 	def validate_credit_limit_on_change(self):
 		if self.get("__islocal") or not self.credit_limits:
 			return
-		
+
 		past_credit_limits = [d.credit_limit
 			for d in frappe.db.get_all("Customer Credit Limit", filters={'parent': self.name}, fields=["credit_limit"], order_by="company")]
-		
+
 		current_credit_limits = [d.credit_limit for d in sorted(self.credit_limits, key=lambda k: k.company)]
 
 		if past_credit_limits == current_credit_limits: