diff --git a/frontend/src/pages/MarketView.tsx b/frontend/src/pages/MarketView.tsx
index 02f0220..0fb0093 100644
--- a/frontend/src/pages/MarketView.tsx
+++ b/frontend/src/pages/MarketView.tsx
@@ -1250,7 +1250,7 @@ const RateHistoryModalComponent: React.FC<{ modal: RateHistoryModal; onClose: ()
                   layout={{
                     margin: { t: 10, r: 10, b: 65, l: 55 },
                     height: 300,
-                    legend: { orientation: 'h', y: -0.3, namelength: -1 },
+                    legend: { orientation: 'h', y: -0.3, namelength: -1 } as any,
                     xaxis: { title: { text: '' }, tickformat: '%d %b %H:%M', type: 'date' },
                     yaxis: { title: { text: 'Rate (£)' }, tickprefix: '£', tickformat: ',.0f' },
                     plot_bgcolor: 'var(--body-bg)',