diff --git a/src/app/services/api/user.service.ts b/src/app/services/api/user.service.ts
index 94b20c3..2d7e524 100644
--- a/src/app/services/api/user.service.ts
+++ b/src/app/services/api/user.service.ts
@@ -1,5 +1,6 @@
 import { Injectable } from '@angular/core';
 import { HttpClient, HttpHeaders, HttpParams } from '@angular/common/http';
+import 'rxjs/add/operator/map';
 import { Observable } from 'rxjs/Rx';
 
 @Injectable({