diff --git a/frontend/src/pages/admin/DetailManageStudent.jsx b/frontend/src/pages/admin/DetailManageStudent.jsx
index 3b4907a..a76877a 100644
--- a/frontend/src/pages/admin/DetailManageStudent.jsx
+++ b/frontend/src/pages/admin/DetailManageStudent.jsx
@@ -45,7 +45,6 @@ const DetailManageStudent = () => {
           </div>
         </div>
         <button
-          key={student.id || index}
           className={style.attendance_btn}
           onClick={() => navigate(`/admin/attendance/${student.id}`)}
         >