diff --git a/backend/techpick-api/src/main/java/techpick/api/infrastructure/lock/MysqlLockProvider.java b/backend/techpick-api/src/main/java/techpick/api/infrastructure/lock/MysqlLockProvider.java
index bb06f5a13..ecde19626 100644
--- a/backend/techpick-api/src/main/java/techpick/api/infrastructure/lock/MysqlLockProvider.java
+++ b/backend/techpick-api/src/main/java/techpick/api/infrastructure/lock/MysqlLockProvider.java
@@ -32,7 +32,7 @@ public boolean acquireLock(String key, long timeout, Long userId) {
 	@Override
 	public void releaseLock(String key, Long userId) {
 		String sql = "SELECT RELEASE_LOCK(?)";
-		String lockKey = key + "_" + userId;
+		String lockKey = userId + "";
 		Boolean result = jdbcTemplate.queryForObject(sql, Boolean.class, lockKey);
 		if (!Boolean.TRUE.equals(result)) {
 			throw new LockException("락 해제 실패 : " + lockKey);
diff --git a/backend/techpick-api/src/main/java/techpick/api/infrastructure/lock/util/LoginUserIdDistributedLockAspect.java b/backend/techpick-api/src/main/java/techpick/api/infrastructure/lock/util/LoginUserIdDistributedLockAspect.java
index ed9141a53..0908d1af9 100644
--- a/backend/techpick-api/src/main/java/techpick/api/infrastructure/lock/util/LoginUserIdDistributedLockAspect.java
+++ b/backend/techpick-api/src/main/java/techpick/api/infrastructure/lock/util/LoginUserIdDistributedLockAspect.java
@@ -31,7 +31,7 @@ public Object handleDistributedLock(ProceedingJoinPoint joinPoint,
 
 		boolean lockCheck = lockProvider.acquireLock(key, timeout, userId);
 		if (!lockCheck) {
-			throw new LockException("락 설정 실패 : " + key);
+			throw new LockException("락 설정 실패 : " + userId);
 		}
 
 		try {