diff --git a/src/widgets/truenas/widget.js b/src/widgets/truenas/widget.js
index 5f8a38df3..8e50956b0 100644
--- a/src/widgets/truenas/widget.js
+++ b/src/widgets/truenas/widget.js
@@ -25,7 +25,7 @@ const widget = {
           healthy: entry.healthy,
           allocated: entry.allocated,
           free: entry.free,
-          data: entry.topology.data,
+          data: entry.topology?.data ?? [],
         })),
     },
   },