diff --git a/src/main/java/org/ktc2/cokaen/wouldyouin/event/application/EventService.java b/src/main/java/org/ktc2/cokaen/wouldyouin/event/application/EventService.java
index 65f34c2..a425ddb 100644
--- a/src/main/java/org/ktc2/cokaen/wouldyouin/event/application/EventService.java
+++ b/src/main/java/org/ktc2/cokaen/wouldyouin/event/application/EventService.java
@@ -134,11 +134,9 @@ public void delete(MemberIdentifier identifier, Long eventId) {
     @Transactional
     public void changeLeftSeat(Long eventId, Integer count) {
         Event event = getByIdOrThrow(eventId);
-        if (event.getLeftSeat() < count) {
+        if (count > 0 && event.getLeftSeat() < count) {
             throw new NoLeftSeatException("남은 좌석이 부족합니다.");
         }
-        if (event.getLeftSeat() > event.getTotalSeat())
-            throw new NoLeftSeatException("좌석 관련 알 수 없는 오류");
         event.decreaseLeftSeat(count);
     }