diff --git a/backend/src/services/students.ts b/backend/src/services/students.ts
index a8300db5..5fc3427f 100644
--- a/backend/src/services/students.ts
+++ b/backend/src/services/students.ts
@@ -23,8 +23,8 @@ import { GroupDTO } from '@dwengo-1/common/interfaces/group';
 import { SubmissionDTO, SubmissionDTOId } from '@dwengo-1/common/interfaces/submission';
 import { QuestionDTO, QuestionId } from '@dwengo-1/common/interfaces/question';
 import { ClassJoinRequestDTO } from '@dwengo-1/common/interfaces/class-join-request';
-import {BadRequestException} from "../exceptions/bad-request-exception";
-import {ConflictException} from "../exceptions/conflict-exception";
+import { BadRequestException } from '../exceptions/bad-request-exception';
+import { ConflictException } from '../exceptions/conflict-exception';
 
 export async function getAllStudents(full: boolean): Promise<StudentDTO[] | string[]> {
     const studentRepository = getStudentRepository();
@@ -138,7 +138,7 @@ export async function createClassJoinRequest(username: string, classId: string):
     const cls = await fetchClass(classId);
 
     if (cls.students.contains(student)) {
-        throw new ConflictException("Student already in this class");
+        throw new ConflictException('Student already in this class');
     }
 
     const request = mapToStudentRequest(student, cls);
diff --git a/backend/src/services/teachers.ts b/backend/src/services/teachers.ts
index 4e67d27d..4973ce81 100644
--- a/backend/src/services/teachers.ts
+++ b/backend/src/services/teachers.ts
@@ -22,15 +22,15 @@ import { Question } from '../entities/questions/question.entity.js';
 import { ClassJoinRequestRepository } from '../data/classes/class-join-request-repository.js';
 import { Student } from '../entities/users/student.entity.js';
 import { NotFoundException } from '../exceptions/not-found-exception.js';
-import {addClassStudent, fetchClass, getClassStudents, getClassStudentsDTO} from './classes.js';
+import { addClassStudent, fetchClass, getClassStudents, getClassStudentsDTO } from './classes.js';
 import { TeacherDTO } from '@dwengo-1/common/interfaces/teacher';
 import { ClassDTO } from '@dwengo-1/common/interfaces/class';
 import { StudentDTO } from '@dwengo-1/common/interfaces/student';
 import { QuestionDTO, QuestionId } from '@dwengo-1/common/interfaces/question';
 import { ClassJoinRequestDTO } from '@dwengo-1/common/interfaces/class-join-request';
 import { ClassJoinRequestStatus } from '@dwengo-1/common/util/class-join-request';
-import {BadRequestException} from "../exceptions/bad-request-exception";
-import {ConflictException} from "../exceptions/conflict-exception";
+import { BadRequestException } from '../exceptions/bad-request-exception';
+import { ConflictException } from '../exceptions/conflict-exception';
 
 export async function getAllTeachers(full: boolean): Promise<TeacherDTO[] | string[]> {
     const teacherRepository: TeacherRepository = getTeacherRepository();
@@ -152,7 +152,7 @@ export async function updateClassJoinRequestStatus(studentUsername: string, clas
     const cls = await fetchClass(classId);
 
     if (cls.students.contains(student)) {
-        throw new ConflictException("Student already in this class");
+        throw new ConflictException('Student already in this class');
     }
 
     const request: ClassJoinRequest | null = await requestRepo.findByStudentAndClass(student, cls);
@@ -163,7 +163,7 @@ export async function updateClassJoinRequestStatus(studentUsername: string, clas
 
     request.status = ClassJoinRequestStatus.Declined;
 
-    if (accepted){
+    if (accepted) {
         request.status = ClassJoinRequestStatus.Accepted;
         await addClassStudent(classId, studentUsername);
     }
diff --git a/backend/tests/controllers/teachers.test.ts b/backend/tests/controllers/teachers.test.ts
index 21533876..c29ecbb3 100644
--- a/backend/tests/controllers/teachers.test.ts
+++ b/backend/tests/controllers/teachers.test.ts
@@ -16,7 +16,7 @@ import { BadRequestException } from '../../src/exceptions/bad-request-exception.
 import { EntityAlreadyExistsException } from '../../src/exceptions/entity-already-exists-exception.js';
 import { getStudentRequestsHandler } from '../../src/controllers/students.js';
 import { TeacherDTO } from '@dwengo-1/common/interfaces/teacher';
-import {getClassHandler} from "../../src/controllers/classes";
+import { getClassHandler } from '../../src/controllers/classes';
 
 describe('Teacher controllers', () => {
     let req: Partial<Request>;
@@ -183,7 +183,7 @@ describe('Teacher controllers', () => {
 
     it('Update join request status', async () => {
         req = {
-            params: { classId: 'id02', studentUsername: 'PinkFloyd'},
+            params: { classId: 'id02', studentUsername: 'PinkFloyd' },
             body: { accepted: 'true' },
         };
 
@@ -201,11 +201,11 @@ describe('Teacher controllers', () => {
         expect(status).toBeTruthy();
 
         req = {
-            params: { id: 'id02' }
-        }
+            params: { id: 'id02' },
+        };
 
         await getClassHandler(req as Request, res as Response);
         const students: string[] = jsonMock.mock.lastCall?.[0].class.students;
-        expect(students).contains("PinkFloyd");
+        expect(students).contains('PinkFloyd');
     });
 });