diff --git a/src/wp-includes/class-wp-http-ixr-client.php b/src/wp-includes/class-wp-http-ixr-client.php
index f873e8f728..5f7bc7a12a 100644
--- a/src/wp-includes/class-wp-http-ixr-client.php
+++ b/src/wp-includes/class-wp-http-ixr-client.php
@@ -48,7 +48,7 @@ public function __construct( $server, $path = false, $port = false, $timeout = 1
 	/**
 	 * @return bool
 	 */
-	public function query() {
+	public function query( ...$args ) {
 		$args    = func_get_args();
 		$method  = array_shift( $args );
 		$request = new IXR_Request( $method, $args );