from last

1 files changed, 2 insertions, 2 deletions

diff --git a/src/client/views/collections/CollectionSubView.tsx b/src/client/views/collections/CollectionSubView.tsx
index e5f266acf..a9b5ce465 100644
--- a/src/client/views/collections/CollectionSubView.tsx
+++ b/src/client/views/collections/CollectionSubView.tsx
@@ -22,7 +22,7 @@ import ReactLoading from 'react-loading';
 
 export interface SubCollectionViewProps extends CollectionViewProps {
     CollectionView: Opt<CollectionView>;
-    SetSubView: (subView: any) => void;
+    SetSubView?: (subView: any) => void;
 }
 
 export function CollectionSubView<T, X>(schemaCtor: (doc: Doc) => T, moreProps?: X) {
@@ -49,7 +49,7 @@ export function CollectionSubView<T, X>(schemaCtor: (doc: Doc) => T, moreProps?:
         }
 
         componentDidMount() {
-            this.props.SetSubView(this);
+            this.props.SetSubView?.(this);
         }
 
         componentWillUnmount() {