diff --git a/src/app/login/LoginComponent.ts b/src/app/login/LoginComponent.ts
index 45573e2..92fe3c3 100644
--- a/src/app/login/LoginComponent.ts
+++ b/src/app/login/LoginComponent.ts
@@ -19,7 +19,6 @@
 /**
  * @file Page for Login component
  */
-import { isNullOrUndefined } from 'util';
 import { HttpErrorResponse } from '@angular/common/http';
 import { Component, Injector, OnInit } from '@angular/core';
 import { FormBuilder, FormGroup, Validators } from '@angular/forms';
@@ -31,7 +30,7 @@
 import { ToastrService } from 'ngx-toastr';
 import { RestService } from 'RestService';
 import { Observable } from 'rxjs';
-import { SharedService } from 'SharedService';
+import { SharedService, isNullOrUndefined } from 'SharedService';
 import { UserDetail } from 'UserModel';
 
 /**