diff --git a/src/main/webapp/admin/users/userForm.zul b/src/main/webapp/admin/users/userForm.zul
index a99856d4..76a75f2c 100644
--- a/src/main/webapp/admin/users/userForm.zul
+++ b/src/main/webapp/admin/users/userForm.zul
@@ -96,7 +96,7 @@
 								<checkbox
 									label="@load(each.role.description)"
 									checked="@bind(each.checked)"
-									disabled="@load(vm.dataBean.username eq 'admin')" />
+									disabled="@load((vm.dataBean.username eq 'admin') or (each.role.authority eq 'ROLE_USER'))" />
 							</template>
 						</vbox>
 					</groupbox>