diff --git a/src/AnomalyDetectors/LocalOutlierFactor.php b/src/AnomalyDetectors/LocalOutlierFactor.php
index 91e42869f..edb0638ae 100644
--- a/src/AnomalyDetectors/LocalOutlierFactor.php
+++ b/src/AnomalyDetectors/LocalOutlierFactor.php
@@ -287,7 +287,7 @@ protected function localOutlierFactor(array $sample) : float
     {
         [$samples, $indices, $distances] = $this->tree->nearest($sample, $this->k);
 
-        $lrd = $this->localReachabilityDensity($indices, $distances);
+        $lrd = $this->localReachabilityDensity($indices, $distances) ?: EPSILON;
 
         $ratios = [];