diff --git a/erpnext/stock/doctype/stock_entry/stock_entry_utils.py b/erpnext/stock/doctype/stock_entry/stock_entry_utils.py
index 446f718..29e3eb1 100644
--- a/erpnext/stock/doctype/stock_entry/stock_entry_utils.py
+++ b/erpnext/stock/doctype/stock_entry/stock_entry_utils.py
@@ -23,7 +23,7 @@
 
 	def process_serial_numbers(serial_nos_list):
 		serial_nos_list = [
-			'\n'.join(serial_num['serial_no'] for serial_num in serial_nos_list)
+			'\n'.join(serial_num['serial_no'] for serial_num in serial_nos_list if serial_num.serial_no)
 		]
 
 		uniques = list(set(serial_nos_list[0].split('\n')))