diff --git a/Backend/Controllers/UserInfoController.cs b/Backend/Controllers/UserInfoController.cs
index 4d042d3..b75b797 100644
--- a/Backend/Controllers/UserInfoController.cs
+++ b/Backend/Controllers/UserInfoController.cs
@@ -523,7 +523,7 @@ namespace Backend.Controllers
                     var sqlString = @$" SELECT ap.AuthCode, ap.MainName, ap.SubName, ap.ShowView FROM auth_page ap
                                     WHERE ap.AuthType='{post.SelectedAuthType}' 
                                     {buildingGuid}
-                                    and ap.subname is not null and ap.showview is not null
+                                    and ap.subname is not null and ap.showview is not null and ap.mainname is not null
                                     AND ap.AuthCode NOT IN ( 
 	                                    SELECT ra.AuthCode FROM role_auth ra
 	                                    LEFT JOIN auth_page ap ON ra.AuthCode = ap.AuthCode