diff --git a/accounts/doctype/sales_invoice/sales_invoice.py b/accounts/doctype/sales_invoice/sales_invoice.py
index 9b17fc0e61a..1003a8ec225 100644
--- a/accounts/doctype/sales_invoice/sales_invoice.py
+++ b/accounts/doctype/sales_invoice/sales_invoice.py
@@ -749,8 +749,9 @@ class DocType(SellingController):
 			for item in self.doclist.get({"parentfield": "entries"}):
 				self.check_expense_account(item)
 			
-				gl_entries += self.get_gl_entries_for_stock(item.expense_account, 
-					-1*item.buying_amount, cost_center=item.cost_center)
+				if item.buying_amount:
+					gl_entries += self.get_gl_entries_for_stock(item.expense_account, 
+						-1*item.buying_amount, cost_center=item.cost_center)
 				
 	def make_pos_gl_entries(self, gl_entries):
 		if cint(self.doc.is_pos) and self.doc.cash_bank_account and self.doc.paid_amount:
diff --git a/stock/doctype/delivery_note/delivery_note.py b/stock/doctype/delivery_note/delivery_note.py
index daf7d615194..ab7d060859b 100644
--- a/stock/doctype/delivery_note/delivery_note.py
+++ b/stock/doctype/delivery_note/delivery_note.py
@@ -413,8 +413,9 @@ class DocType(SellingController):
 		for item in self.doclist.get({"parentfield": "delivery_note_details"}):
 			self.check_expense_account(item)
 			
-			gl_entries += self.get_gl_entries_for_stock(item.expense_account, -1*item.buying_amount, 
-				cost_center=item.cost_center)
+			if item.buying_amount:
+				gl_entries += self.get_gl_entries_for_stock(item.expense_account, -1*item.buying_amount, 
+					cost_center=item.cost_center)
 				
 		if gl_entries:
 			from accounts.general_ledger import make_gl_entries