diff --git a/includes/abstracts/abstract-wc-rest-posts-controller.php b/includes/abstracts/abstract-wc-rest-posts-controller.php
index 1d24d2ba4bd..bffc4a6843e 100644
--- a/includes/abstracts/abstract-wc-rest-posts-controller.php
+++ b/includes/abstracts/abstract-wc-rest-posts-controller.php
@@ -530,6 +530,8 @@ abstract class WC_REST_Posts_Controller extends WC_REST_Controller {
 			$query_args['orderby'] = 'post__in';
 		} elseif ( 'id' === $query_args['orderby'] ) {
 			$query_args['orderby'] = 'ID'; // ID must be capitalized.
+		} elseif ( 'slug' === $query_args['orderby'] ) {
+			$query_args['orderby'] = 'name';
 		}
 
 		return $query_args;