diff --git a/Providers/FreeSql.Provider.SqlServer/SqlServerDbFirst.cs b/Providers/FreeSql.Provider.SqlServer/SqlServerDbFirst.cs
index ec9a39d0b..828214f40 100644
--- a/Providers/FreeSql.Provider.SqlServer/SqlServerDbFirst.cs
+++ b/Providers/FreeSql.Provider.SqlServer/SqlServerDbFirst.cs
@@ -278,7 +278,7 @@ when b.name in ('nchar', 'nvarchar') then cast(a.max_length / 2 as varchar)
   else cast(a.max_length as varchar) end + ')'
  when b.name in ('numeric', 'decimal') then '(' + cast(a.precision as varchar) + ',' + cast(a.scale as varchar) + ')'
  else '' end as 'sqltype'
-,( select value from sys.extended_properties where major_id = a.object_id AND minor_id = a.column_id AND name = 'MS_Description') 'comment'
+,( select value from sys.extended_properties where major_id = a.object_id AND minor_id = a.column_id AND name = 'MS_Description' and class=1) 'comment'
 {0} a
 inner join sys.types b on b.user_type_id = a.user_type_id
 left join sys.tables d on d.object_id = a.object_id
@@ -524,4 +524,4 @@ public List<DbEnumInfo> GetEnumsByDatabase(params string[] database)
             return new List<DbEnumInfo>();
         }
     }
-}
\ No newline at end of file
+}