diff --git a/src/main/java/com/mpnp/baechelin/login/jwt/service/TokenService.java b/src/main/java/com/mpnp/baechelin/login/jwt/service/TokenService.java
index 642879b..9c9088a 100644
--- a/src/main/java/com/mpnp/baechelin/login/jwt/service/TokenService.java
+++ b/src/main/java/com/mpnp/baechelin/login/jwt/service/TokenService.java
@@ -77,7 +77,7 @@ public AuthResponse refreshToken(HttpServletRequest request, HttpServletResponse
             throw new CustomException(ErrorCode.INVALID_REFRESH_TOKEN);
         }
 
-        // userId와 refresh token 으로 DB 확인
+        // userId와 refresh token 으로 DB에 있는 refresh token과 cookie에 담긴 refresh token이 일치하는 지 확인
         UserRefreshToken userRefreshToken = userRefreshTokenRepository.findBySocialIdAndRefreshToken(userId, refreshToken);
         if (userRefreshToken == null) {
             throw new CustomException(ErrorCode.INVALID_REFRESH_TOKEN);