diff --git a/src/app/shared/service/sroll-top.service.ts b/src/app/shared/service/sroll-top.service.ts
index a59577a354b83dbe9372c569a68adf147a0f290a..3a89f1d7ee510ab912bdf43801acadae13c11fdb 100644
--- a/src/app/shared/service/sroll-top.service.ts
+++ b/src/app/shared/service/sroll-top.service.ts
@@ -6,7 +6,7 @@ import { isPlatformBrowser } from '@angular/common';
 export class ScrollTopService {
 
     constructor(
-        @Inject(PLATFORM_ID) private platformId: Object, private router: Router) {
+        @Inject(PLATFORM_ID) private platformId: object, private router: Router) {
         }
 
         setScrollTop() {