diff --git a/library/think/Model.php b/library/think/Model.php
index 94b99b94..c5ae76e6 100644
--- a/library/think/Model.php
+++ b/library/think/Model.php
@@ -367,7 +367,7 @@ class Model
     {
         // 数据处理
         $data = $this->_write_data($data, 'update');
-        if (false === $data) {
+        if (false == $data) {
             return false;
         }
         // 分析表达式