diff --git a/src/wp-includes/formatting.php b/src/wp-includes/formatting.php
index c5a1f53f7a..ee2140cc78 100644
--- a/src/wp-includes/formatting.php
+++ b/src/wp-includes/formatting.php
@@ -5502,10 +5502,10 @@ function sanitize_trackback_urls( $to_ping ) {
  * This should not be used to escape data going directly into an SQL query.
  *
  * @since 3.6.0
- * @since 5.5.0 Leave a non-string value untouched.
+ * @since 5.5.0 Non-string values are left untouched.
  *
- * @param string|array $value String or array of strings to slash.
- * @return string|array Slashed $value
+ * @param string|string[] $value String or array of strings to slash.
+ * @return string|string[] Slashed $value.
  */
 function wp_slash( $value ) {
 	if ( is_array( $value ) ) {