diff --git a/backend/internal/service/user_service.go b/backend/internal/service/user_service.go
index d1f0763..bb3c856 100644
--- a/backend/internal/service/user_service.go
+++ b/backend/internal/service/user_service.go
@@ -55,7 +55,7 @@ func (s *UserService) CreateUser(input dto.UserCreateDto) (model.User, error) {
 		Username:  input.Username,
 		IsAdmin:   input.IsAdmin,
 	}
-	if err := s.db.Create(user).Error; err != nil {
+	if err := s.db.Create(&user).Error; err != nil {
 		if errors.Is(err, gorm.ErrDuplicatedKey) {
 			return model.User{}, s.checkDuplicatedFields(user)
 		}