diff --git a/src/KMeans/Point.php b/src/KMeans/Point.php
index 6d6e682..6f92e7e 100644
--- a/src/KMeans/Point.php
+++ b/src/KMeans/Point.php
@@ -62,17 +62,13 @@ class Point implements \ArrayAccess
         return $precise ? sqrt($distance) : $distance;
     }
 
-    public function getClosest(iterable $points): Point
+    public function getClosest(iterable $points): ?Point
     {
+        $minDistance = PHP_INT_MAX;
+        $minPoint = null;
         foreach ($points as $point) {
             $distance = $this->getDistanceWith($point, false);
 
-            if (!isset($minDistance)) {
-                $minDistance = $distance;
-                $minPoint    = $point;
-                continue;
-            }
-
             if ($distance < $minDistance) {
                 $minDistance = $distance;
                 $minPoint    = $point;