diff --git a/src/main/java/com/dnd/gongmuin/answer/service/AnswerService.java b/src/main/java/com/dnd/gongmuin/answer/service/AnswerService.java
index 5586ffbc..1fb957e7 100644
--- a/src/main/java/com/dnd/gongmuin/answer/service/AnswerService.java
+++ b/src/main/java/com/dnd/gongmuin/answer/service/AnswerService.java
@@ -28,6 +28,12 @@ public class AnswerService {
 	private final QuestionPostRepository questionPostRepository;
 	private final AnswerRepository answerRepository;
 
+	private static void validateIfQuestioner(Member member, QuestionPost questionPost) {
+		if (!questionPost.isQuestioner(member)) {
+			throw new ValidationException(QuestionPostErrorCode.NOT_AUTHORIZED);
+		}
+	}
+
 	@Transactional
 	public AnswerDetailResponse registerAnswer(
 		Long questionPostId,
@@ -60,12 +66,6 @@ public AnswerDetailResponse chooseAnswer(
 		return AnswerMapper.toAnswerDetailResponse(answer);
 	}
 
-	private static void validateIfQuestioner(Member member, QuestionPost questionPost) {
-		if (!questionPost.isQuestioner(member)) {
-			throw new ValidationException(QuestionPostErrorCode.NOT_AUTHORIZED);
-		}
-	}
-
 	private void validateIfQuestionPostExists(Long questionPostId) {
 		boolean isExists = questionPostRepository.existsById(questionPostId);
 		if (!isExists) {