diff --git a/js/apps/admin-ui/src/user/EditUser.tsx b/js/apps/admin-ui/src/user/EditUser.tsx
index 6b52e645aea1..843646152ea1 100644
--- a/js/apps/admin-ui/src/user/EditUser.tsx
+++ b/js/apps/admin-ui/src/user/EditUser.tsx
@@ -74,6 +74,7 @@ export default function EditUser() {
         isServiceUser: serviceUsers.some(
           (serviceUser) => serviceUser.id === user.id
         ),
+        isDefaultUser: user.username?.toLowerCase() === "default",
       };
     },
     ({ user, bruteForced, isServiceUser }) => {
@@ -225,7 +226,11 @@ const EditUserForm = ({
                   </DropdownItem>,
                 ]),
           ]}
-          onToggle={(value) => save({ ...user, enabled: value })}
+          onToggle={(value) => {
+            if (user.username?.toLowerCase() != "default") {
+              save({ ...user, enabled: value });
+            }
+          }}
           isEnabled={user.enabled}
         />
       )}