diff --git a/src/wp-includes/class-http.php b/src/wp-includes/class-http.php
index db0ba609a3..99b20a941a 100644
--- a/src/wp-includes/class-http.php
+++ b/src/wp-includes/class-http.php
@@ -390,7 +390,7 @@ class WP_Http {
 		 * @param array|WP_Error $response HTTP response or WP_Error object.
 		 * @param string         $context  Context under which the hook is fired.
 		 * @param string         $class    HTTP transport used.
-		 * @param array          $args     HTTP request arguments.
+		 * @param array          $r        HTTP request arguments.
 		 * @param string         $url      The request URL.
 		 */
 		do_action( 'http_api_debug', $response, 'response', 'Requests', $r, $url );