diff --git a/ThinkPHP/Library/Think/Db/Driver/Mongo.class.php b/ThinkPHP/Library/Think/Db/Driver/Mongo.class.php
index 8fe879142..299097111 100644
--- a/ThinkPHP/Library/Think/Db/Driver/Mongo.class.php
+++ b/ThinkPHP/Library/Think/Db/Driver/Mongo.class.php
@@ -270,8 +270,11 @@ public function insertAll($dataList, $options = array())
      * @param string $pk 主键名
      * @return integer
      */
-    public function getMongoNextId($pk)
+    public function getMongoNextId($pk,$options=array())
     {
+        if (isset($options['table'])) {
+            $this->switchCollection($options['table']);
+        }
         if ($this->config['debug']) {
             $this->queryStr = $this->_dbName . '.' . $this->_collectionName . '.find({},{' . $pk . ':1}).sort({' . $pk . ':-1}).limit(1)';
         }