diff --git a/src/main/java/org/poolc/api/comment/service/CommentService.java b/src/main/java/org/poolc/api/comment/service/CommentService.java
index c426d289..3aa1b20c 100644
--- a/src/main/java/org/poolc/api/comment/service/CommentService.java
+++ b/src/main/java/org/poolc/api/comment/service/CommentService.java
@@ -26,7 +26,7 @@ public class CommentService {
     private final NotificationService notificationService;
     public Comment createComment(CommentCreateValues values) {
         Comment parent = null;
-        if (values.getParentId() != 0 && values.getParentId() != null) parent = findById(values.getParentId());
+        if (values.getParentId() != null && values.getParentId() != 0) parent = findById(values.getParentId());
         if (parent != null && parent.getIsChild()) {
             throw new IllegalArgumentException("대댓글에 대댓글을 달 수 없습니다.");
         } else {