diff --git a/src/bin/BinStorageConditions.tsx b/src/bin/BinStorageConditions.tsx
index 2e0d2cf..4f71818 100644
--- a/src/bin/BinStorageConditions.tsx
+++ b/src/bin/BinStorageConditions.tsx
@@ -636,7 +636,7 @@ export default function BinStorageConditions(props: Props) {
               </Typography>
             </Box>
             {headspaceCO2.map(co2 => {
-              let measurement = UnitMeasurement.any(co2.status.lastGoodMeasurement[0]);
+              let measurement = UnitMeasurement.any(co2.status.lastGoodMeasurement[0] ?? UnitMeasurement.create());
               let reading: number = 0;
               if (measurement.values[0] && measurement.values[0].values[0]) {
                 reading = measurement.values[0].values[0];