2 files changed, 4 insertions, 0 deletions
diff --git a/src/client/views/collections/CollectionBaseView.tsx b/src/client/views/collections/CollectionBaseView.tsx
index 4a296493a..b6ed6aaa0 100644
--- a/src/client/views/collections/CollectionBaseView.tsx
+++ b/src/client/views/collections/CollectionBaseView.tsx
@@ -11,6 +11,7 @@ import { SelectionManager } from '../../util/SelectionManager';
 import { ContextMenu } from '../ContextMenu';
 import { FieldViewProps } from '../nodes/FieldView';
 import './CollectionBaseView.scss';
+import { DateField } from '../../../new_fields/DateField';
 
 export enum CollectionViewType {
     Invalid,
@@ -113,6 +114,7 @@ export class CollectionBaseView extends React.Component<CollectionViewProps> {
         } else {
             Doc.GetProto(targetDataDoc)[targetField] = new List([doc]);
         }
+        Doc.GetProto(doc).lastOpened = new DateField;
         return true;
     }
 
diff --git a/src/client/views/collections/CollectionDockingView.tsx b/src/client/views/collections/CollectionDockingView.tsx
index 7332a490a..b9cab428d 100644
--- a/src/client/views/collections/CollectionDockingView.tsx
+++ b/src/client/views/collections/CollectionDockingView.tsx
@@ -28,6 +28,7 @@ import { library } from '@fortawesome/fontawesome-svg-core';
 import { faFile, faUnlockAlt } from '@fortawesome/free-solid-svg-icons';
 import { CurrentUserUtils } from '../../../server/authentication/models/current_user_utils';
 import { Docs } from '../../documents/Documents';
+import { DateField } from '../../../new_fields/DateField';
 library.add(faFile);
 
 @observer
@@ -204,6 +205,7 @@ export class CollectionDockingView extends React.Component<SubCollectionViewProp
     }
     @action
     public AddTab = (stack: any, document: Doc, dataDocument: Doc | undefined) => {
+        document.lastOpened = new DateField;
         let docs = Cast(this.props.Document.data, listSpec(Doc));
         if (docs) {
             docs.push(document);