diff --git a/frontend/src/app/service/user.service.ts b/frontend/src/app/service/user.service.ts
index caa9bf9..ba6bead 100644
--- a/frontend/src/app/service/user.service.ts
+++ b/frontend/src/app/service/user.service.ts
@@ -21,11 +21,10 @@ export class UserService {
     });
   }
 
-  public async getOrCreateUser(userProfile: KeycloakProfile): Promise<User | undefined | null> {
+  public async getOrCreateUser(userProfile: KeycloakProfile) {
     if (userProfile.id == null) {
-      return null;
+      return;
     }
-
     return await this.getUser(userProfile.id)
       .toPromise()
       .then(async (user) => {