diff --git a/src/main/java/com/gdschongik/gdsc/domain/study/dao/AssignmentHistoryRepository.java b/src/main/java/com/gdschongik/gdsc/domain/study/dao/AssignmentHistoryRepository.java
index 4e11bf86c..fd5463d3f 100644
--- a/src/main/java/com/gdschongik/gdsc/domain/study/dao/AssignmentHistoryRepository.java
+++ b/src/main/java/com/gdschongik/gdsc/domain/study/dao/AssignmentHistoryRepository.java
@@ -8,6 +8,5 @@
 
 public interface AssignmentHistoryRepository
         extends JpaRepository<AssignmentHistory, Long>, AssignmentHistoryCustomRepository {
-    // todo: public 제거
-    public Optional<AssignmentHistory> findByMemberAndStudyDetail(Member member, StudyDetail studyDetail);
+    Optional<AssignmentHistory> findByMemberAndStudyDetail(Member member, StudyDetail studyDetail);
 }