diff --git a/src/Predicate/XPath.php b/src/Predicate/XPath.php
index 43a34b5..4185556 100644
--- a/src/Predicate/XPath.php
+++ b/src/Predicate/XPath.php
@@ -23,13 +23,21 @@ class XPath
      * which allows you to use the prefix in the selector.
      * @var array<string, string>
      */
-    private array $ns;
+    private array $ns = [];
+
+    public function __construct(string $selector)
+    {
+        $this->selector = $selector;
+    }
 
     public function getSelector(): string
     {
         return $this->selector;
     }
 
+    /**
+     * @deprecated now used __construct()
+     */
     public function setSelector(string $selector): self
     {
         $this->selector = $selector;
diff --git a/tests/Unit/FormatterTest.php b/tests/Unit/FormatterTest.php
index 54ce7a3..5fc1b7b 100644
--- a/tests/Unit/FormatterTest.php
+++ b/tests/Unit/FormatterTest.php
@@ -50,7 +50,7 @@ public function testHttps(): void
         $predicate->setConfig(['path' => '/test'])
             ->setCaseSensitive(true)
             ->setExcept('expect')
-            ->setXPath((new XPath())->setSelector('selector')->setNs(['foo' => 'bar']))
+            ->setXPath((new XPath('selector'))->setNs(['foo' => 'bar']))
             ->setJsonPath((new JsonPath('selector')));
 
         $stub = new Stub();
@@ -114,7 +114,7 @@ public function testHttp(): void
         $predicate->setConfig(['path' => '/test'])
             ->setCaseSensitive(true)
             ->setExcept('expect')
-            ->setXPath((new XPath())->setSelector('selector')->setNs(['foo' => 'bar']))
+            ->setXPath((new XPath('selector'))->setNs(['foo' => 'bar']))
             ->setJsonPath((new JsonPath('selector')));
 
         $stub = new Stub();
diff --git a/tests/Unit/Predicate/XPathTest.php b/tests/Unit/Predicate/XPathTest.php
index df90035..5535f17 100644
--- a/tests/Unit/Predicate/XPathTest.php
+++ b/tests/Unit/Predicate/XPathTest.php
@@ -12,8 +12,8 @@ class XPathTest extends TestCase
 
     public function testFill(): void
     {
-        $xPath = new XPath();
-        $xPath->setSelector('selector')->setNs(['foo' => 'bar']);
+        $xPath = new XPath('selector');
+        $xPath->setNs(['foo' => 'bar']);
         $this->assertNotEmpty($xPath->getNs());
         $this->assertNotEmpty($xPath->getSelector());
         $this->assertEquals('selector', $xPath->getSelector());
diff --git a/tests/Unit/PredicateTest.php b/tests/Unit/PredicateTest.php
index 2ffad56..78552a5 100644
--- a/tests/Unit/PredicateTest.php
+++ b/tests/Unit/PredicateTest.php
@@ -18,7 +18,7 @@ public function testFill(): void
             ->setInjectJs('Inject js string')
             ->setCaseSensitive(true)
             ->setExcept('expect')
-            ->setXPath((new XPath())->setSelector('selector')->setNs(['foo' => 'bar']))
+            ->setXPath((new XPath('selector'))->setNs(['foo' => 'bar']))
             ->setJsonPath((new JsonPath('selector')));
 
         $this->assertNotEmpty($predicate->getOperator());