diff --git a/components/chart/temperature-column.js b/components/chart/temperature-column.js
index 18f36bf..3ae3779 100644
--- a/components/chart/temperature-column.js
+++ b/components/chart/temperature-column.js
@@ -41,7 +41,7 @@ const TemperatureColumn = ({
         key='fhm'
       />}
 
-      {data && data.y && <DotAndLine
+      {data && typeof(data.y) !== 'undefined' && <DotAndLine
         y={data.y}
         exclude={data.temperatureExclude}
         rightY={data.rightY}