diff --git a/src/app/shared/object-detail/my-dspace-result-detail-element/claimed-task-search-result/claimed-task-search-result-detail-element.component.ts b/src/app/shared/object-detail/my-dspace-result-detail-element/claimed-task-search-result/claimed-task-search-result-detail-element.component.ts
index 2ee661ef38..c5d511b867 100644
--- a/src/app/shared/object-detail/my-dspace-result-detail-element/claimed-task-search-result/claimed-task-search-result-detail-element.component.ts
+++ b/src/app/shared/object-detail/my-dspace-result-detail-element/claimed-task-search-result/claimed-task-search-result-detail-element.component.ts
@@ -17,7 +17,7 @@ import { followLink } from '../../../utils/follow-link-config.model';
 import { LinkService } from '../../../../core/cache/builders/link.service';
 import { Item } from '../../../../core/shared/item.model';
 import { getFirstCompletedRemoteData } from '../../../../core/shared/operators';
-import { isNotEmpty } from '../../../empty.util';
+import { isNotEmpty, hasValue } from '../../../empty.util';
 import { ObjectCacheService } from '../../../../core/cache/object-cache.service';
 
 /**
@@ -88,7 +88,9 @@ export class ClaimedTaskSearchResultDetailElementComponent extends SearchResultD
 
   ngOnDestroy() {
     // This ensures the object is removed from cache, when action is performed on task
-    this.objectCache.remove(this.dso._links.workflowitem.href);
+    if (hasValue(this.dso)) {
+      this.objectCache.remove(this.dso._links.workflowitem.href);
+    }
   }
 
 }
diff --git a/src/app/shared/object-detail/my-dspace-result-detail-element/pool-search-result/pool-search-result-detail-element.component.ts b/src/app/shared/object-detail/my-dspace-result-detail-element/pool-search-result/pool-search-result-detail-element.component.ts
index 6dec14f9cb..a5eca3c148 100644
--- a/src/app/shared/object-detail/my-dspace-result-detail-element/pool-search-result/pool-search-result-detail-element.component.ts
+++ b/src/app/shared/object-detail/my-dspace-result-detail-element/pool-search-result/pool-search-result-detail-element.component.ts
@@ -17,7 +17,7 @@ import { followLink } from '../../../utils/follow-link-config.model';
 import { LinkService } from '../../../../core/cache/builders/link.service';
 import { Item } from '../../../../core/shared/item.model';
 import { getFirstCompletedRemoteData } from '../../../../core/shared/operators';
-import { isNotEmpty } from '../../../empty.util';
+import { isNotEmpty, hasValue } from '../../../empty.util';
 import { ObjectCacheService } from '../../../../core/cache/object-cache.service';
 
 /**
@@ -89,7 +89,9 @@ export class PoolSearchResultDetailElementComponent extends SearchResultDetailEl
 
   ngOnDestroy() {
     // This ensures the object is removed from cache, when action is performed on task
-    this.objectCache.remove(this.dso._links.workflowitem.href);
+    if (hasValue(this.dso)) {
+      this.objectCache.remove(this.dso._links.workflowitem.href);
+    }
   }
 
 }
diff --git a/src/app/shared/object-list/my-dspace-result-list-element/claimed-search-result/claimed-search-result-list-element.component.ts b/src/app/shared/object-list/my-dspace-result-list-element/claimed-search-result/claimed-search-result-list-element.component.ts
index 237a5f516e..3da443551f 100644
--- a/src/app/shared/object-list/my-dspace-result-list-element/claimed-search-result/claimed-search-result-list-element.component.ts
+++ b/src/app/shared/object-list/my-dspace-result-list-element/claimed-search-result/claimed-search-result-list-element.component.ts
@@ -22,7 +22,7 @@ import { ObjectCacheService } from '../../../../core/cache/object-cache.service'
 import { getFirstCompletedRemoteData } from '../../../../core/shared/operators';
 import { Item } from '../../../../core/shared/item.model';
 import { mergeMap, tap } from 'rxjs/operators';
-import { isNotEmpty } from '../../../empty.util';
+import { isNotEmpty, hasValue } from '../../../empty.util';
 
 @Component({
   selector: 'ds-claimed-search-result-list-element',
@@ -101,7 +101,9 @@ export class ClaimedSearchResultListElementComponent extends SearchResultListEle
 
   ngOnDestroy() {
     // This ensures the object is removed from cache, when action is performed on task
-    this.objectCache.remove(this.dso._links.workflowitem.href);
+    if (hasValue(this.dso)) {
+      this.objectCache.remove(this.dso._links.workflowitem.href);
+    }
   }
 
 }
diff --git a/src/app/shared/object-list/my-dspace-result-list-element/pool-search-result/pool-search-result-list-element.component.ts b/src/app/shared/object-list/my-dspace-result-list-element/pool-search-result/pool-search-result-list-element.component.ts
index cb924af40f..674b62733f 100644
--- a/src/app/shared/object-list/my-dspace-result-list-element/pool-search-result/pool-search-result-list-element.component.ts
+++ b/src/app/shared/object-list/my-dspace-result-list-element/pool-search-result/pool-search-result-list-element.component.ts
@@ -23,7 +23,7 @@ import { APP_CONFIG, AppConfig } from '../../../../../config/app-config.interfac
 import { ObjectCacheService } from '../../../../core/cache/object-cache.service';
 import { getFirstCompletedRemoteData } from '../../../../core/shared/operators';
 import { Item } from '../../../../core/shared/item.model';
-import { isNotEmpty } from '../../../empty.util';
+import { isNotEmpty, hasValue } from '../../../empty.util';
 
 /**
  * This component renders pool task object for the search result in the list view.
@@ -111,6 +111,8 @@ export class PoolSearchResultListElementComponent extends SearchResultListElemen
 
   ngOnDestroy() {
     // This ensures the object is removed from cache, when action is performed on task
-    this.objectCache.remove(this.dso._links.workflowitem.href);
+    if (hasValue(this.dso)) {
+      this.objectCache.remove(this.dso._links.workflowitem.href);
+    }
   }
 }