diff --git a/modules/ppcp-api-client/services.php b/modules/ppcp-api-client/services.php
index d079d5704..66bda386f 100644
--- a/modules/ppcp-api-client/services.php
+++ b/modules/ppcp-api-client/services.php
@@ -824,12 +824,14 @@ return array(
 		$purchase_unit_sanitizer = $container->get( 'api.helper.purchase-unit-sanitizer' );
 		return new OrderTransient( $cache, $purchase_unit_sanitizer );
 	},
-	'api.helper.purchase-unit-sanitizer'        => SingletonDecorator::make(static function( ContainerInterface $container ): PurchaseUnitSanitizer {
-		$settings  = $container->get( 'wcgateway.settings' );
-		assert( $settings instanceof Settings );
+	'api.helper.purchase-unit-sanitizer'        => SingletonDecorator::make(
+		static function( ContainerInterface $container ): PurchaseUnitSanitizer {
+			$settings  = $container->get( 'wcgateway.settings' );
+			assert( $settings instanceof Settings );
 
-		$behavior  = $settings->has( 'subtotal_mismatch_behavior' ) ? $settings->get( 'subtotal_mismatch_behavior' ) : null;
-		$line_name = $settings->has( 'subtotal_mismatch_line_name' ) ? $settings->get( 'subtotal_mismatch_line_name' ) : null;
-		return new PurchaseUnitSanitizer( $behavior, $line_name );
-	}),
+			$behavior  = $settings->has( 'subtotal_mismatch_behavior' ) ? $settings->get( 'subtotal_mismatch_behavior' ) : null;
+			$line_name = $settings->has( 'subtotal_mismatch_line_name' ) ? $settings->get( 'subtotal_mismatch_line_name' ) : null;
+			return new PurchaseUnitSanitizer( $behavior, $line_name );
+		}
+	),
 );