diff --git a/collector/stats.go b/collector/stats.go
index ce37235..53dfab2 100644
--- a/collector/stats.go
+++ b/collector/stats.go
@@ -48,6 +48,13 @@ type e2elatency struct {
 	Percentiles []map[string]float64 `json:"percentiles"`
 }
 
+func (e *e2elatency) percentileValue(idx int) float64 {
+	if idx >= len(e.Percentiles) {
+		return 0
+	}
+	return e.Percentiles[idx]["value"]
+}
+
 type client struct {
 	ID            string `json:"client_id"`
 	Hostname      string `json:"hostname"`
diff --git a/collector/stats_channel.go b/collector/stats_channel.go
index 77efb0b..98abc68 100644
--- a/collector/stats_channel.go
+++ b/collector/stats_channel.go
@@ -59,7 +59,7 @@ func ChannelStats(namespace string) StatsCollector {
 			}, labels),
 		},
 		{
-			val: func(c *channel) float64 { return c.E2eLatency.Percentiles[0]["value"] },
+			val: func(c *channel) float64 { return c.E2eLatency.percentileValue(0) },
 			vec: prometheus.NewGaugeVec(prometheus.GaugeOpts{
 				Namespace: namespace,
 				Name:      "e2e_latency_99p",
@@ -67,7 +67,7 @@ func ChannelStats(namespace string) StatsCollector {
 			}, labels),
 		},
 		{
-			val: func(c *channel) float64 { return c.E2eLatency.Percentiles[1]["value"] },
+			val: func(c *channel) float64 { return c.E2eLatency.percentileValue(1) },
 			vec: prometheus.NewGaugeVec(prometheus.GaugeOpts{
 				Namespace: namespace,
 				Name:      "e2e_latency_95p",