diff --git a/db.py b/db.py
index c9bd880..366e114 100644
--- a/db.py
+++ b/db.py
@@ -33,7 +33,7 @@ class User(Base):
 class Product(Base):
 	__tablename__ = 'products'
 
-	bar_code = Column(Integer, primary_key=True)
+	bar_code = Column(String(13), primary_key=True)
 	name = Column(String(30))
 	price = Column(Integer)
 
diff --git a/text_based.py b/text_based.py
index f32126d..c8fbcf5 100644
--- a/text_based.py
+++ b/text_based.py
@@ -360,7 +360,7 @@ class AddProductMenu(Menu):
 	def _execute(self):
 		self.session = Session()
 		self.print_header()
-		bar_code = self.input_int('Bar code> ')
+		bar_code = self.input_str('Bar code> ', Product.bar_code_re, (8,13))
 		name = self.input_str('Name> ', Product.name_re, (1,30))
 		price = self.input_int('Price> ', (1,100000))
 		product = Product(bar_code, name, price)