diff --git a/web/src/routes/Storage.jsx b/web/src/routes/Storage.jsx
index e2498fbcc..06976ca76 100644
--- a/web/src/routes/Storage.jsx
+++ b/web/src/routes/Storage.jsx
@@ -23,6 +23,7 @@ export default function Storage() {
   }
 
   const getUnitSize = (MB) => {
+    if (isNaN(MB) || MB < 0) return 'Invalid number';
     if (MB < 1024) return `${MB} MB`;
 
     return `${(MB / 1024).toFixed(2)} GB`;