diff --git a/src/main/java/com/plzgraduate/myongjigraduatebe/lecture/adapter/out/persistence/LectureMapper.java b/src/main/java/com/plzgraduate/myongjigraduatebe/lecture/adapter/out/persistence/LectureMapper.java
index c8491470..8de57768 100644
--- a/src/main/java/com/plzgraduate/myongjigraduatebe/lecture/adapter/out/persistence/LectureMapper.java
+++ b/src/main/java/com/plzgraduate/myongjigraduatebe/lecture/adapter/out/persistence/LectureMapper.java
@@ -19,6 +19,7 @@ public class LectureMapper {
 	Lecture mapToLectureDomainEntity(LectureJpaEntity lecture) {
 
 		return Lecture.builder()
+			.id(lecture.getId())
 			.lectureCode(lecture.getLectureCode())
 			.name(lecture.getName())
 			.credit(lecture.getCredit())
diff --git a/src/test/java/com/plzgraduate/myongjigraduatebe/takenlecture/adaptor/out/persistence/TakenLectureRepositoryTest.java b/src/test/java/com/plzgraduate/myongjigraduatebe/takenlecture/adaptor/out/persistence/TakenLectureRepositoryTest.java
index aa3f23b7..26431de7 100644
--- a/src/test/java/com/plzgraduate/myongjigraduatebe/takenlecture/adaptor/out/persistence/TakenLectureRepositoryTest.java
+++ b/src/test/java/com/plzgraduate/myongjigraduatebe/takenlecture/adaptor/out/persistence/TakenLectureRepositoryTest.java
@@ -33,7 +33,8 @@ void findByUser() {
 			.studentNumber("60191656").build();
 		userRepository.save(user);
 
-		LectureJpaEntity lecture = LectureJpaEntity.builder().build();
+		LectureJpaEntity lecture = LectureJpaEntity.builder()
+			.lectureCode("KMA02105").build();
 		lectureRepository.save(lecture);
 
 		TakenLectureJpaEntity takenLectureA = TakenLectureJpaEntity.builder()