diff --git a/quickwit/quickwit-ui/src/utils/models.ts b/quickwit/quickwit-ui/src/utils/models.ts
index 82ac9e79f0e..3ad7a1a4433 100644
--- a/quickwit/quickwit-ui/src/utils/models.ts
+++ b/quickwit/quickwit-ui/src/utils/models.ts
@@ -143,7 +143,7 @@ export function extractAggregationResults(aggregation: any): ParsedAggregationRe
     if (term_buckets.lenght == 0) {
       return null;
     }
-    if (Object.prototype.hasOwnProperty.call(term_buckets[0], "histo_agg")) {
+    if (term_buckets.length > 0 && Object.prototype.hasOwnProperty.call(term_buckets[0], "histo_agg")) {
       // we have a term+histo aggregation
       const timestamps_set: Set<number> = new Set();
       term_buckets.forEach((bucket: any) => bucket.histo_agg.buckets.forEach(