1 files changed, 1 insertions, 1 deletions
diff --git a/src/client/views/collections/collectionMulticolumn/MultirowResizer.tsx b/src/client/views/collections/collectionMulticolumn/MultirowResizer.tsx
index 5478bf709..006ef4df6 100644
--- a/src/client/views/collections/collectionMulticolumn/MultirowResizer.tsx
+++ b/src/client/views/collections/collectionMulticolumn/MultirowResizer.tsx
@@ -11,7 +11,7 @@ import { StyleProviderFunc } from "../../nodes/DocumentView";
 interface ResizerProps {
     height: number;
     styleProvider?: StyleProviderFunc;
-    isContentActive?: () => boolean;
+    isContentActive?: () => boolean | undefined;
     columnUnitLength(): number | undefined;
     toTop?: Doc;
     toBottom?: Doc;