diff --git a/src/main/java/com/bio/bio_backend/domain/base/member/service/MemberServiceImpl.java b/src/main/java/com/bio/bio_backend/domain/base/member/service/MemberServiceImpl.java
index d78fd35..4b3b077 100644
--- a/src/main/java/com/bio/bio_backend/domain/base/member/service/MemberServiceImpl.java
+++ b/src/main/java/com/bio/bio_backend/domain/base/member/service/MemberServiceImpl.java
@@ -32,9 +32,8 @@ public class MemberServiceImpl implements MemberService {
 
     @Override
     public UserDetails loadUserByUsername(String id) throws UsernameNotFoundException {
-        // JPA 레파지토리를 사용하여 회원 조회
         Member member = memberRepository.findByUserId(id)
-                .orElseThrow(() -> new UsernameNotFoundException("User not found with id : " + id));
+                .orElseThrow(() -> new UsernameNotFoundException("사용자를 찾을 수 없습니다: " + id));
         
         // MapStruct를 사용하여 Member 엔티티를 MemberDto로 변환
         MemberDto memberDto = memberMapper.toMemberDto(member);