diff --git a/wp-includes/wp-db.php b/wp-includes/wp-db.php
index cba426aea0..b4b64152d1 100644
--- a/wp-includes/wp-db.php
+++ b/wp-includes/wp-db.php
@@ -266,7 +266,7 @@ class wpdb {
 	 * @access public
 	 * @war array
 	 */
-	var $field_type = array();
+	var $field_types = array();
 
 	/**
 	 * Database table columns charset