diff --git a/backend/src/controllers/classes.ts b/backend/src/controllers/classes.ts
index b9c14ca9..7fa5e0c0 100644
--- a/backend/src/controllers/classes.ts
+++ b/backend/src/controllers/classes.ts
@@ -28,7 +28,7 @@ export async function createClassHandler(req: Request, res: Response): Promise<v
         return;
     }
 
-    res.status(201).json({cls});
+    res.status(201).json({ cls });
 }
 
 export async function getClassHandler(req: Request, res: Response): Promise<void> {
diff --git a/frontend/src/controllers/classes.ts b/frontend/src/controllers/classes.ts
index dadf6dec..41e53c0c 100644
--- a/frontend/src/controllers/classes.ts
+++ b/frontend/src/controllers/classes.ts
@@ -9,7 +9,7 @@ export interface ClassesResponse {
 }
 
 export interface ClassResponse {
-    class: ClassDTO;
+    cls: ClassDTO;
 }
 
 export interface TeacherInvitationsResponse {