diff --git a/includes/class-wc-product-variable.php b/includes/class-wc-product-variable.php
index bcd21bd8923..81c28f5b774 100644
--- a/includes/class-wc-product-variable.php
+++ b/includes/class-wc-product-variable.php
@@ -258,15 +258,15 @@ class WC_Product_Variable extends WC_Product {
 		if ( empty( $this->prices_array[ $price_hash ] ) ) {
 
 			// Get value of transient
-			$this->prices_array = array_filter( (array) json_decode( strval( get_transient( $transient_name ) ), true ) );
+			$prices_array = array_filter( (array) json_decode( strval( get_transient( $transient_name ) ), true ) );
 
 			// If the product version has changed, reset cache
-			if ( empty( $this->prices_array['version'] ) || $this->prices_array['version'] !== WC_Cache_Helper::get_transient_version( 'product' ) ) {
+			if ( empty( $prices_array['version'] ) || $prices_array['version'] !== WC_Cache_Helper::get_transient_version( 'product' ) ) {
 				$this->prices_array = array( 'version' => WC_Cache_Helper::get_transient_version( 'product' ) );
 			}
 
 			// If the prices are not stored for this hash, generate them
-			if ( empty( $this->prices_array[ $price_hash ] ) ) {
+			if ( empty( $prices_array[ $price_hash ] ) ) {
 				$prices         = array();
 				$regular_prices = array();
 				$sale_prices    = array();
@@ -311,19 +311,19 @@ class WC_Product_Variable extends WC_Product {
 				asort( $regular_prices );
 				asort( $sale_prices );
 
-				$this->prices_array[ $price_hash ] = array(
+				$prices_array[ $price_hash ] = array(
 					'price'         => $prices,
 					'regular_price' => $regular_prices,
 					'sale_price'    => $sale_prices,
 				);
 
-				set_transient( $transient_name, json_encode( $this->prices_array ), DAY_IN_SECONDS * 30 );
+				set_transient( $transient_name, json_encode( $prices_array ), DAY_IN_SECONDS * 30 );
 			}
 
 			/**
 			 * Give plugins one last chance to filter the variation prices array which has been generated.
 			 */
-			$this->prices_array[ $price_hash ] = apply_filters( 'woocommerce_variation_prices', $this->prices_array[ $price_hash ], $this, $display );
+			$this->prices_array[ $price_hash ] = apply_filters( 'woocommerce_variation_prices', $prices_array[ $price_hash ], $this, $display );
 		}
 
 		/**