From 3590bfb198dcd2b81d76ecbbf5e834db17ea807f Mon Sep 17 00:00:00 2001
From: Mike Jolley <mike.jolley@me.com>
Date: Mon, 19 Jan 2015 11:30:30 +0000
Subject: [PATCH] Standard tax class is empty. Fixes #7142

---
 includes/api/class-wc-api-orders.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/includes/api/class-wc-api-orders.php b/includes/api/class-wc-api-orders.php
index c094765c879..8cbefb382cf 100644
--- a/includes/api/class-wc-api-orders.php
+++ b/includes/api/class-wc-api-orders.php
@@ -996,7 +996,7 @@ class WC_API_Orders extends WC_API_Resource {
 			// if taxable, tax class and total are required
 			if ( isset( $fee['taxable'] ) && $fee['taxable'] ) {
 
-				if ( empty( $fee['tax_class'] ) ) {
+				if ( ! isset( $fee['tax_class'] ) ) {
 					throw new WC_API_Exception( 'woocommerce_invalid_fee_item', __( 'Fee tax class is required when fee is taxable', 'woocommerce' ), 400 );
 				}