diff --git a/src/main/java/kusitms/gallae/domain/User.java b/src/main/java/kusitms/gallae/domain/User.java
index a8f1e1b..892aeca 100644
--- a/src/main/java/kusitms/gallae/domain/User.java
+++ b/src/main/java/kusitms/gallae/domain/User.java
@@ -28,7 +28,7 @@ public class User {
 
     private String nickName;   //기업이면 이게 기관명
 
-    private String registrationNum;
+    private String registNum;
 
     private String department;  //담당 부서
 
diff --git a/src/main/java/kusitms/gallae/service/user/AuthenticationService.java b/src/main/java/kusitms/gallae/service/user/AuthenticationService.java
index d9f6f78..66485e2 100644
--- a/src/main/java/kusitms/gallae/service/user/AuthenticationService.java
+++ b/src/main/java/kusitms/gallae/service/user/AuthenticationService.java
@@ -55,7 +55,7 @@ public LoginResponse login(LoginRequestDto loginRequestDto, HttpServletResponse
                 .name(user.getName())
                 .accessToken(accessToken)
                 .birth(user.getBirth())
-                .registNum(user.getRegistrationNum())
+                .registNum(user.getRegistNum())
                 .point(user.getPoint())
                 .department(user.getDepartment())
                 .refreshToken(user.getRefreshToken())
diff --git a/src/main/java/kusitms/gallae/service/user/UserService.java b/src/main/java/kusitms/gallae/service/user/UserService.java
index 984628f..234b880 100644
--- a/src/main/java/kusitms/gallae/service/user/UserService.java
+++ b/src/main/java/kusitms/gallae/service/user/UserService.java
@@ -68,6 +68,7 @@ public void registerNewManager(ManagerRegistratiorDto registrationDto) throws IO
                 .email(registrationDto.getEmail()) // 선택적 입력
                 .department(registrationDto.getDepartment())
                 .birth(registrationDto.getBirth())
+                .registNum(registrationDto.getRegistNum())
                 .refreshToken("")  // 회원가입은 토큰 없음
                 .profileImageUrl(profileImageUrl) // 프로필 이미지 URL 추가
                 .signUpStatus(User.UserSignUpStatus.MANAGER)