1 files changed, 1 insertions, 1 deletions
diff --git a/src/client/views/SidebarAnnos.tsx b/src/client/views/SidebarAnnos.tsx
index fae385660..43a02d029 100644
--- a/src/client/views/SidebarAnnos.tsx
+++ b/src/client/views/SidebarAnnos.tsx
@@ -88,7 +88,7 @@ export class SidebarAnnos extends React.Component<FieldViewProps & ExtraProps> {
     removeDocument = (doc: Doc | Doc[]) => this.props.removeDocument(doc, this.sidebarKey);
     docFilters = () => [...StrListCast(this.props.layoutDoc._docFilters), ...StrListCast(this.props.layoutDoc[this.filtersKey])];
     showTitle = () => "title";
-    setHeightCallback = (height: number) => this.props.setHeight(height + this.filtersHeight());
+    setHeightCallback = (height: number) => this.props.setHeight?.(height + this.filtersHeight());
     render() {
         const renderTag = (tag: string) => {
             const active = StrListCast(this.props.rootDoc[this.filtersKey]).includes(`${tag}:${tag}:check`);