diff --git a/src/main/java/com/example/demo/app/domain/service/UserService.java b/src/main/java/com/example/demo/app/domain/service/UserService.java
index fa63458..345625e 100644
--- a/src/main/java/com/example/demo/app/domain/service/UserService.java
+++ b/src/main/java/com/example/demo/app/domain/service/UserService.java
@@ -5,7 +5,7 @@ import com.example.demo.app.presentation.form.UserForm;
 
 public interface UserService {
     
-	public void register(UserForm userForm, Long courseId, Long userId);
+	public void register(UserForm userForm, Long courseId);
     
     public void updateCourse(Long userId, Long courseId);
 
diff --git a/src/main/java/com/example/demo/app/presentation/controller/UserController.java b/src/main/java/com/example/demo/app/presentation/controller/UserController.java
index a4ac2cb..d009d29 100644
--- a/src/main/java/com/example/demo/app/presentation/controller/UserController.java
+++ b/src/main/java/com/example/demo/app/presentation/controller/UserController.java
@@ -11,7 +11,6 @@ import org.springframework.web.bind.annotation.ModelAttribute;
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestParam;
 
-import com.example.demo.app.domain.model.LoginModel;
 import com.example.demo.app.domain.service.CourseService;
 import com.example.demo.app.domain.service.QuestionService;
 import com.example.demo.app.domain.service.UserService;
@@ -84,11 +83,9 @@ public class UserController {
 			Model model, 
 			HttpSession session) {
 
-		LoginModel loginUser = (LoginModel) session.getAttribute("loginUser");
-		
 		Long courseId = courseService.findByName((String) session.getAttribute("selectedCourseName"));
 		
-		userService.register(userForm, courseId, loginUser.getUserId());
+		userService.register(userForm, courseId);
 		
 		return "redirect:/login";
 	}