diff --git a/src/components/DataSheetGrid.tsx b/src/components/DataSheetGrid.tsx
index 8858efc..4a38007 100644
--- a/src/components/DataSheetGrid.tsx
+++ b/src/components/DataSheetGrid.tsx
@@ -119,7 +119,7 @@ export const DataSheetGrid = React.memo(
         refreshRate: 100,
       })
 
-      setHeightDiff(height ? displayHeight - Math.ceil(height) : 0)
+      setHeightDiff(height ? displayHeight - height : 0)
 
       const edges = useEdges(outerRef, width, height)