diff --git a/src/components/graph/LineBarChart.tsx b/src/components/graph/LineBarChart.tsx
index 15e0726..77a38ca 100644
--- a/src/components/graph/LineBarChart.tsx
+++ b/src/components/graph/LineBarChart.tsx
@@ -63,7 +63,7 @@ interface LineBarChartInterface {
   data1: any,
   data2: any,
   data3: any,
-  red: any
+  red?: any,
   label: any
 }