diff --git a/erpnext/accounts/doctype/payment_entry/payment_entry.py b/erpnext/accounts/doctype/payment_entry/payment_entry.py
index 3eed70c..6c04cf5 100644
--- a/erpnext/accounts/doctype/payment_entry/payment_entry.py
+++ b/erpnext/accounts/doctype/payment_entry/payment_entry.py
@@ -267,6 +267,8 @@
 			if d.amount:
 				self.difference_amount -= flt(d.amount)
 				
+		self.difference_amount = flt(self.difference_amount, self.precision("difference_amount"))
+				
 	def clear_unallocated_reference_document_rows(self):
 		self.set("references", self.get("references", {"allocated_amount": ["not in", [0, None, ""]]}))