diff --git a/includes/abstracts/abstract-wc-order.php b/includes/abstracts/abstract-wc-order.php
index 1124c897b4e..6cdd71f41c7 100644
--- a/includes/abstracts/abstract-wc-order.php
+++ b/includes/abstracts/abstract-wc-order.php
@@ -37,7 +37,7 @@
  * @property    string $shipping_method_title < 2.1 was used for shipping method title. Now @deprecated.
  * @property    int $customer_user User ID who the order belongs to. 0 for guests.
  * @property    string $order_key Random key/password unqique to each order.
- * @property    string $order_discount. Stored after tax discounts pre-2.3. Now @deprecated.
+ * @property    string $order_discount Stored after tax discounts pre-2.3. Now @deprecated.
  * @property    string $order_tax Stores order tax total.
  * @property    string $order_shipping_tax Stores shipping tax total.
  * @property    string $order_shipping Stores shipping total.
@@ -108,8 +108,7 @@ abstract class WC_Abstract_Order {
 	/**
 	 * Init/load the order object. Called from the constructor.
 	 *
-	 * @var WP_Post
-	 * @param  int|WP_Post|WC_Order $order Order to init
+	 * @param  int|object|WC_Order $order Order to init
 	 */
 	protected function init( $order ) {
 		if ( is_numeric( $order ) ) {
@@ -120,7 +119,7 @@ abstract class WC_Abstract_Order {
 			$this->id   = absint( $order->id );
 			$this->post = $order->post;
 			$this->get_order( $this->id );
-		} elseif ( $order instanceof WP_Post || isset( $order->ID ) ) {
+		} elseif ( isset( $order->ID ) {
 			$this->id   = absint( $order->ID );
 			$this->post = $order;
 			$this->get_order( $this->id );
diff --git a/includes/abstracts/abstract-wc-product.php b/includes/abstracts/abstract-wc-product.php
index 5b2986fb0bb..3bdf38e1052 100644
--- a/includes/abstracts/abstract-wc-product.php
+++ b/includes/abstracts/abstract-wc-product.php
@@ -59,8 +59,7 @@ class WC_Product {
 	/**
 	 * Constructor gets the post object and sets the ID for the loaded product.
 	 *
-	 * @param int|WC_Product|WP_Post $product Product ID, post object, or product object
-	 * @var   WP_POST
+	 * @param int|WC_Product|object $product Product ID, post object, or product object
 	 */
 	public function __construct( $product ) {
 		if ( is_numeric( $product ) ) {
@@ -69,7 +68,7 @@ class WC_Product {
 		} elseif ( $product instanceof WC_Product ) {
 			$this->id   = absint( $product->id );
 			$this->post = $product->post;
-		} elseif ( $product instanceof WP_Post || isset( $product->ID ) ) {
+		} elseif ( isset( $product->ID ) ) {
 			$this->id   = absint( $product->ID );
 			$this->post = $product;
 		}
diff --git a/includes/admin/meta-boxes/views/html-order-fee.php b/includes/admin/meta-boxes/views/html-order-fee.php
index 9ba95317e0b..2b2c4476fd7 100644
--- a/includes/admin/meta-boxes/views/html-order-fee.php
+++ b/includes/admin/meta-boxes/views/html-order-fee.php
@@ -2,8 +2,8 @@
 /**
  * Shows an order item fee
  *
- * @var int $item_id The id of the item being displayed
- * @var object $item The item being displayed
+ * @var $item_id int The id of the item being displayed
+ * @var $item object The item being displayed
  */
 if ( ! defined( 'ABSPATH' ) ) {
 	exit;