diff --git a/demo-shell-ng2/app/components/activiti/activiti-process-attachments.component.html b/demo-shell-ng2/app/components/activiti/activiti-process-attachments.component.html
index e786152649..40c432c332 100644
--- a/demo-shell-ng2/app/components/activiti/activiti-process-attachments.component.html
+++ b/demo-shell-ng2/app/components/activiti/activiti-process-attachments.component.html
@@ -3,6 +3,7 @@
     <div class="adf-no-form-container">
         <adf-upload-drag-area
             [parentId]="processId"
+            [disabled]="isCompletedProcess()"
             [showNotificationBar]="false">
             <adf-process-attachment-list #processAttachList
                 *ngIf="processId"
diff --git a/demo-shell-ng2/app/components/activiti/activiti-task-attachments.component.html b/demo-shell-ng2/app/components/activiti/activiti-task-attachments.component.html
index c100f7f588..614eb855bf 100644
--- a/demo-shell-ng2/app/components/activiti/activiti-task-attachments.component.html
+++ b/demo-shell-ng2/app/components/activiti/activiti-task-attachments.component.html
@@ -3,6 +3,7 @@
     <div class="adf-no-form-container">
         <adf-upload-drag-area
             [parentId]="taskId"
+            [disabled]="isCompletedTask()"
             [showNotificationBar]="false">
             <adf-task-attachment-list #taskAttachList
                 *ngIf="taskId"