diff --git a/src/angular2-jwt-refresh.ts b/src/angular2-jwt-refresh.ts
index e81fba1..90b73fc 100644
--- a/src/angular2-jwt-refresh.ts
+++ b/src/angular2-jwt-refresh.ts
@@ -20,11 +20,10 @@ import {
   IAuthConfig,
   JwtHelper
 } from 'angular2-jwt';
-import 'rxjs';
 import { Observable } from 'rxjs/Observable';
 import { Observer } from 'rxjs/Observer';
 import { Subject } from 'rxjs/Subject';
-
+import 'rxjs/add/observable/of';
 
 @Injectable()
 export class JwtHttp extends AuthHttp {