diff --git a/src/Geometries/Point.php b/src/Geometries/Point.php
index 1199447..4176d34 100644
--- a/src/Geometries/Point.php
+++ b/src/Geometries/Point.php
@@ -15,7 +15,7 @@ public function __construct($lat, $lng, $alt = null)
         $this->lng = (float)$lng;
         $this->alt = isset($alt) ? (float)$alt : null;
         $this->setPrecision(
-            function_exists('config') ? config('postgis.precision') : 6
+            function_exists('config') ? config('postgis.precision', 6) : 6
         );
     }