diff --git a/library/think/db/Query.php b/library/think/db/Query.php
index 4cea36ea..64f449c9 100644
--- a/library/think/db/Query.php
+++ b/library/think/db/Query.php
@@ -2601,7 +2601,7 @@ class Query
             $resultSet = $this->options($options)
                 ->limit($count)
                 ->bind($bind)
-                ->where($column, 'asc' == $order ? '>' : '<', $lastId)
+                ->where($column, 'asc' == strtolower($order) ? '>' : '<', $lastId)
                 ->order($column, $order)
                 ->select();
             if ($resultSet instanceof Collection) {