diff --git a/src/wp-includes/wp-db.php b/src/wp-includes/wp-db.php
index fd997ad661..f4ff1c46d4 100644
--- a/src/wp-includes/wp-db.php
+++ b/src/wp-includes/wp-db.php
@@ -113,7 +113,7 @@ class wpdb {
 	 * Last query made
 	 *
 	 * @since 0.71
-	 * @var array
+	 * @var string
 	 */
 	var $last_query;