diff --git a/src/app/components/arlas-wui-root/arlas-wui-root.component.spec.ts b/src/app/components/arlas-wui-root/arlas-wui-root.component.spec.ts
index 1c88ebd9..119f9031 100644
--- a/src/app/components/arlas-wui-root/arlas-wui-root.component.spec.ts
+++ b/src/app/components/arlas-wui-root/arlas-wui-root.component.spec.ts
@@ -60,8 +60,8 @@ describe('ArlasWuiRootComponent', () => {
     mockSettingsService.getLinksSettings.and.returnValue();
     mockSettingsService.getTicketingKey.and.returnValue();
 
-    const mockContributorService = jasmine.createSpyObj('ContributorService', ['getChipSearchContributor']);
-    mockContributorService.getChipSearchContributor.and.returnValue();
+    const mockContributorService = jasmine.createSpyObj('ContributorService', ['getSearchContributors']);
+    mockContributorService.getSearchContributors.and.returnValue();
 
     await TestBed.configureTestingModule({
       imports: [
diff --git a/src/app/components/arlas-wui-root/arlas-wui-root.component.ts b/src/app/components/arlas-wui-root/arlas-wui-root.component.ts
index 1c33d11d..66be5f1d 100644
--- a/src/app/components/arlas-wui-root/arlas-wui-root.component.ts
+++ b/src/app/components/arlas-wui-root/arlas-wui-root.component.ts
@@ -379,7 +379,7 @@ export class ArlasWuiRootComponent implements OnInit, AfterViewInit, OnDestroy {
    */
   private adjustComponentsSize() {
     setTimeout(() => {
-      if (this.timelineComponent.timelineHistogramComponent) {
+      if (!!this.timelineComponent && !!this.timelineComponent.timelineHistogramComponent) {
         this.timelineComponent.timelineHistogramComponent.resizeHistogram();
         if (!!this.timelineComponent.detailedTimelineHistogramComponent) {
           this.timelineComponent.detailedTimelineHistogramComponent.resizeHistogram();