diff --git a/src/main/java/com/thirdparty/ticketing/domain/waitingroom/WaitingAspect.java b/src/main/java/com/thirdparty/ticketing/domain/waitingroom/WaitingAspect.java
index 9ed180d5..0708c607 100644
--- a/src/main/java/com/thirdparty/ticketing/domain/waitingroom/WaitingAspect.java
+++ b/src/main/java/com/thirdparty/ticketing/domain/waitingroom/WaitingAspect.java
@@ -1,12 +1,13 @@
 package com.thirdparty.ticketing.domain.waitingroom;
 
-import lombok.RequiredArgsConstructor;
 import org.aspectj.lang.ProceedingJoinPoint;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.security.core.Authentication;
 import org.springframework.security.core.context.SecurityContextHolder;
 
+import lombok.RequiredArgsConstructor;
+
 @RequiredArgsConstructor
 public class WaitingAspect {
 
@@ -14,9 +15,9 @@ public class WaitingAspect {
 
     private Object waitingRequest(ProceedingJoinPoint joinPoint) throws Throwable {
         Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
-        String email = (String)authentication.getPrincipal();
+        String email = (String) authentication.getPrincipal();
         UserInfo userInfo = new UserInfo(email);
-        if(waitingManager.isReadyToHandle(userInfo)){
+        if (waitingManager.isReadyToHandle(userInfo)) {
             return joinPoint.proceed();
         } else {
             long waitingNumber = waitingManager.enterWaitingRoom(userInfo);
diff --git a/src/main/java/com/thirdparty/ticketing/domain/waitingroom/WaitingLine.java b/src/main/java/com/thirdparty/ticketing/domain/waitingroom/WaitingLine.java
index 1374de82..dcf007f5 100644
--- a/src/main/java/com/thirdparty/ticketing/domain/waitingroom/WaitingLine.java
+++ b/src/main/java/com/thirdparty/ticketing/domain/waitingroom/WaitingLine.java
@@ -4,6 +4,7 @@ public interface WaitingLine {
 
     /**
      * 사용자를 대기열에 넣는다.
+     *
      * @param userInfo 사용자의 정보
      * @param waitingCounter 사용자의 고유한 카운트 값
      */
diff --git a/src/main/java/com/thirdparty/ticketing/domain/waitingroom/WaitingRoom.java b/src/main/java/com/thirdparty/ticketing/domain/waitingroom/WaitingRoom.java
index d650f14c..6580c680 100644
--- a/src/main/java/com/thirdparty/ticketing/domain/waitingroom/WaitingRoom.java
+++ b/src/main/java/com/thirdparty/ticketing/domain/waitingroom/WaitingRoom.java
@@ -10,6 +10,7 @@ public abstract class WaitingRoom {
 
     /**
      * 사용자를 대기열에 넣고, 대기공간에 보관한다.
+     *
      * @param userInfo 사용자의 정보
      * @return 사용자의 남은 순번을 반환한다.
      */