diff --git a/src/wp-includes/rest-api/endpoints/class-wp-rest-themes-controller.php b/src/wp-includes/rest-api/endpoints/class-wp-rest-themes-controller.php
index 88494a5fa9..591e3b838b 100644
--- a/src/wp-includes/rest-api/endpoints/class-wp-rest-themes-controller.php
+++ b/src/wp-includes/rest-api/endpoints/class-wp-rest-themes-controller.php
@@ -367,7 +367,7 @@ class WP_REST_Themes_Controller extends WP_REST_Controller {
 					),
 				),
 				'textdomain'     => array(
-					'description' => __( 'The theme\'s textdomain.' ),
+					'description' => __( 'The theme\'s text domain.' ),
 					'type'        => 'string',
 					'readonly'    => true,
 				),