1 files changed, 8 insertions, 0 deletions
diff --git a/BackEnd/Timeline/Controllers/UserController.cs b/BackEnd/Timeline/Controllers/UserController.cs
index bbdb5d57..da34cb1b 100644
--- a/BackEnd/Timeline/Controllers/UserController.cs
+++ b/BackEnd/Timeline/Controllers/UserController.cs
@@ -212,6 +212,10 @@ namespace Timeline.Controllers
             {
                 return NotFound(ErrorResponse.UserCommon.NotExist());
             }
+            catch (InvalidOperationOnRootUserException)
+            {
+                return BadRequest(ErrorResponse.UserController.ChangePermission_RootUser());
+            }
         }
 
         [HttpDelete("users/{username}/permissions/{permission}"), PermissionAuthorize(UserPermission.UserManagement)]
@@ -232,6 +236,10 @@ namespace Timeline.Controllers
             {
                 return NotFound(ErrorResponse.UserCommon.NotExist());
             }
+            catch (InvalidOperationOnRootUserException)
+            {
+                return BadRequest(ErrorResponse.UserController.ChangePermission_RootUser());
+            }
         }
     }
 }