diff --git a/erpnext/shopping_cart/cart.py b/erpnext/shopping_cart/cart.py
index 8515db3..56afe95 100644
--- a/erpnext/shopping_cart/cart.py
+++ b/erpnext/shopping_cart/cart.py
@@ -230,12 +230,12 @@
 	if address_type.lower() == "billing":
 		quotation.customer_address = address_name
 		quotation.address_display = address_display
-		quotation.shipping_address_name == quotation.shipping_address_name or address_name
+		quotation.shipping_address_name = quotation.shipping_address_name or address_name
 		address_doc = next((doc for doc in get_billing_addresses() if doc["name"] == address_name), None)
 	elif address_type.lower() == "shipping":
 		quotation.shipping_address_name = address_name
 		quotation.shipping_address = address_display
-		quotation.customer_address == quotation.customer_address or address_name
+		quotation.customer_address = quotation.customer_address or address_name
 		address_doc = next((doc for doc in get_shipping_addresses() if doc["name"] == address_name), None)
 	apply_cart_settings(quotation=quotation)