cleanup of warnings

1 files changed, 1 insertions, 1 deletions

diff --git a/src/client/views/collections/CollectionSubView.tsx b/src/client/views/collections/CollectionSubView.tsx
index 527623ad4..b995fc7d5 100644
--- a/src/client/views/collections/CollectionSubView.tsx
+++ b/src/client/views/collections/CollectionSubView.tsx
@@ -107,7 +107,7 @@ export function CollectionSubView<T>(schemaCtor: (doc: Doc) => T) {
         get childLayoutPairs(): { layout: Doc; data: Doc; }[] {
             const { Document, DataDoc } = this.props;
             const validPairs = this.childDocs.map(doc => Doc.GetLayoutDataDocPair(Document, !this.props.annotationsKey ? DataDoc : undefined, doc)).filter(pair => pair.layout);
-            return validPairs.map(({ data, layout }) => ({ data: data!, layout: layout! })); // this mapping is a bit of a hack to coerce types
+            return validPairs.map(({ data, layout }) => ({ data, layout: layout! })); // this mapping is a bit of a hack to coerce types
         }
         get childDocList() {
             return Cast(this.dataField, listSpec(Doc));