diff --git a/src/wp-includes/class-wp-query.php b/src/wp-includes/class-wp-query.php
index 94512908bf..02baa6d1f1 100644
--- a/src/wp-includes/class-wp-query.php
+++ b/src/wp-includes/class-wp-query.php
@@ -752,7 +752,7 @@ class WP_Query {
 	 *                                                    return posts containing 'pillow' but not 'sofa'. The
 	 *                                                    character used for exclusion can be modified using the
 	 *                                                    the 'wp_query_search_exclusion_prefix' filter.
-	 *     @type array           $search_columns          Array of column names to be searched. Accepts 'post_title',
+	 *     @type string[]        $search_columns          Array of column names to be searched. Accepts 'post_title',
 	 *                                                    'post_excerpt' and 'post_content'. Default empty array.
 	 *     @type int             $second                  Second of the minute. Default empty. Accepts numbers 0-59.
 	 *     @type bool            $sentence                Whether to search by phrase. Default false.