diff --git a/demo-shell-ng2/app/components/activiti/activiti-demo.component.ts b/demo-shell-ng2/app/components/activiti/activiti-demo.component.ts
index bcde6be5ab..138e7a2869 100644
--- a/demo-shell-ng2/app/components/activiti/activiti-demo.component.ts
+++ b/demo-shell-ng2/app/components/activiti/activiti-demo.component.ts
@@ -366,7 +366,12 @@ export class ActivitiDemoComponent implements AfterViewInit, OnDestroy, OnInit {
             this.taskPagination.skipCount -= maxItems;
         }
         this.taskPage = this.currentPage(this.taskPagination.skipCount, maxItems);
-        this.taskList.reload();
+        if (this.taskList) {
+            this.taskList.reload();
+        }
+        if (this.processList) {
+            this.processList.reload();
+        }
     }
 
     onFormContentClick(content: any): void {