diff --git a/src/app/shared/error-handler.ts b/src/app/shared/error-handler.ts
index 6cc085be386587f691b08a19302b98885ead0860..3c360bcbc23b98c4e9615bdae06273a6b7bac671 100644
--- a/src/app/shared/error-handler.ts
+++ b/src/app/shared/error-handler.ts
@@ -1,7 +1,7 @@
 import { isPlatformBrowser, LocationStrategy, PathLocationStrategy } from '@angular/common';
 import { ErrorHandler, Inject, Injectable, Injector, PLATFORM_ID } from '@angular/core';
 
-@Injectable()
+@Injectable({ providedIn: 'root' })
 export class GlobalErrorHandler implements ErrorHandler {
   private _errorMap = [];
 
diff --git a/src/app/shared/tracking/ArsnovaClickAngulartics2Piwik.ts b/src/app/shared/tracking/ArsnovaClickAngulartics2Piwik.ts
index 4093f50067967cbf9a3e9f4d92a228398925b75e..b3acf135d3c28101309a1b58301f54b5d8b5c272 100644
--- a/src/app/shared/tracking/ArsnovaClickAngulartics2Piwik.ts
+++ b/src/app/shared/tracking/ArsnovaClickAngulartics2Piwik.ts
@@ -6,7 +6,7 @@ import { INamedType } from '../../lib/interfaces/interfaces';
 
 declare var _paq: any;
 
-@Injectable()
+@Injectable({ providedIn: 'root' })
 export class ArsnovaClickAngulartics2Piwik extends Angulartics2Piwik {
 
   constructor(private _angulartics2: Angulartics2, private route: ActivatedRoute) {