render fix?

1 files changed, 1 insertions, 1 deletions

diff --git a/src/client/views/nodes/DocumentView.tsx b/src/client/views/nodes/DocumentView.tsx
index 8d3c3126d..0753ad632 100644
--- a/src/client/views/nodes/DocumentView.tsx
+++ b/src/client/views/nodes/DocumentView.tsx
@@ -723,7 +723,7 @@ export class DocumentView extends DocComponent<DocumentViewProps, Document>(Docu
     }
 
     render() {
-        if (!this.props.Document) return (null);
+        if (!(this.props.Document instanceof Doc)) return (null);
         const ruleColor = this.props.ruleProvider ? StrCast(this.props.ruleProvider["ruleColor_" + this.Document.heading]) : undefined;
         const ruleRounding = this.props.ruleProvider ? StrCast(this.props.ruleProvider["ruleRounding_" + this.Document.heading]) : undefined;
         const colorSet = this.setsLayoutProp("backgroundColor");