diff --git a/modules/ppcp-wc-gateway/src/Gateway/ProcessPaymentTrait.php b/modules/ppcp-wc-gateway/src/Gateway/ProcessPaymentTrait.php
index 1b53e9c0b..cd82967cc 100644
--- a/modules/ppcp-wc-gateway/src/Gateway/ProcessPaymentTrait.php
+++ b/modules/ppcp-wc-gateway/src/Gateway/ProcessPaymentTrait.php
@@ -35,7 +35,7 @@ trait ProcessPaymentTrait {
 				$this->format_exception( $error )
 			);
 
-			if ( WC()->session->get( 'ppcp_delete_wc_order_on_payment_failure' ) ) {
+			if ( WC()->session->get( 'ppcp_delete_wc_order_on_payment_failure' ) ?? false ) {
 				$wc_order->delete( true );
 			}
 		}