diff --git a/src/math/Vector3.php b/src/math/Vector3.php
index 91f425df6..6e01ef398 100644
--- a/src/math/Vector3.php
+++ b/src/math/Vector3.php
@@ -30,7 +30,7 @@ class Vector3{
 
 	public function __construct($x = 0, $y = 0, $z = 0){
 		if(($x instanceof Vector3) === true){
-			$this->__construct($x->x, $x->y, $x->z);
+			self::__construct($x->x, $x->y, $x->z);
 		}else{
 			$this->x = $x;
 			$this->y = $y;