diff --git a/src/module/setChartData.js b/src/module/setChartData.js
index 99256ea..8a62378 100644
--- a/src/module/setChartData.js
+++ b/src/module/setChartData.js
@@ -262,7 +262,7 @@ export function formatMaxTwo(times) {
   const formattedTimes = [];
   for (let time of times) {
     // Match numbers and units (days, hours, minutes, seconds); assume numbers have at most 10 digits
-    let units = time.match(/\d{1,10}[dhms]/g);
+    let units = time.match(/\d{1,10}[dhms]/g) || [];
     let formattedTime = "";
     let count = 0;