diff --git a/Yi.Abp.Net8/module/bbs/Yi.Framework.Bbs.Domain/Managers/ForumManager.cs b/Yi.Abp.Net8/module/bbs/Yi.Framework.Bbs.Domain/Managers/ForumManager.cs
index 92ef9b9c..64e06052 100644
--- a/Yi.Abp.Net8/module/bbs/Yi.Framework.Bbs.Domain/Managers/ForumManager.cs
+++ b/Yi.Abp.Net8/module/bbs/Yi.Framework.Bbs.Domain/Managers/ForumManager.cs
@@ -66,7 +66,7 @@ namespace Yi.Framework.Bbs.Domain.Managers
                 return true;
             }
             //管理员，直接放行
-            if (roles.Contains(UserConst.AdminRolesCode))
+            if (roles is not null&&roles.Contains(UserConst.AdminRolesCode))
             {
                 return true;
             }