diff --git a/web/utils/crontab.py b/web/utils/crontab.py
index 58b5e710c..b0d14a86b 100644
--- a/web/utils/crontab.py
+++ b/web/utils/crontab.py
@@ -537,7 +537,7 @@ echo "--------------------------------------------------------------------------
             mw.writeFile(file, '')
         content = mw.readFile(file)
         if not content:
-            content == ''
+            content = ''
         # if not content:
         #     return mw.returnData(False, '计划任务配置文件不存在?') 
         content += str(bash_script) + "\n"