diff --git a/ng2-components/ng2-activiti-tasklist/src/components/adf-create-task-attachment.component.ts b/ng2-components/ng2-activiti-tasklist/src/components/adf-create-task-attachment.component.ts
index d6bbc9b4e9..c0442822e8 100644
--- a/ng2-components/ng2-activiti-tasklist/src/components/adf-create-task-attachment.component.ts
+++ b/ng2-components/ng2-activiti-tasklist/src/components/adf-create-task-attachment.component.ts
@@ -50,10 +50,10 @@ export class ActivitiCreateTaskAttachmentComponent implements OnChanges {
     }
 
     onFileUpload(event: any) {
-        let filesList: File[] = event.detail.files;
+        let filesList: File[] = event.detail.files.map(obj => obj.file);
 
         for (let fileInfoObj of filesList) {
-            let file: File = fileInfoObj.file;
+            let file: File = fileInfoObj;
             this.activitiContentService.createTaskRelatedContent(this.taskId, file).subscribe(
                 (res) => {
                     this.success.emit(res);