diff --git a/SqlSugar/Realization/SqlServer/Core/SqlBuilder/SqlServerDbMaintenance.cs b/SqlSugar/Realization/SqlServer/Core/SqlBuilder/SqlServerDbMaintenance.cs
index 34df635dc..863b9a93b 100644
--- a/SqlSugar/Realization/SqlServer/Core/SqlBuilder/SqlServerDbMaintenance.cs
+++ b/SqlSugar/Realization/SqlServer/Core/SqlBuilder/SqlServerDbMaintenance.cs
@@ -11,7 +11,7 @@ namespace SqlSugar
         {
             get
             {
-                return "";
+                return "ALERT TABLE {0} ADD {1} {2} {3}";
             }
         }