diff --git a/internal/bucket/bandwidth/measurement.go b/internal/bucket/bandwidth/measurement.go
index 9f605d1ed..069785e4b 100644
--- a/internal/bucket/bandwidth/measurement.go
+++ b/internal/bucket/bandwidth/measurement.go
@@ -57,6 +57,10 @@ func (m *bucketMeasurement) updateExponentialMovingAverage(endTime time.Time) {
 		m.lock.Unlock()
 	}()
 
+	if m.startTime.IsZero() {
+		return
+	}
+
 	if endTime.Before(m.startTime) {
 		return
 	}