diff --git a/src/CssInliner.php b/src/CssInliner.php
index 4417fd5f..ace1de64 100644
--- a/src/CssInliner.php
+++ b/src/CssInliner.php
@@ -417,7 +417,7 @@ private function normalizeStyleAttributesOfAllNodes(): void
     private function getAllNodesWithStyleAttribute(): \DOMNodeList
     {
         $query = '//*[@style]';
-        $matches = $this->getXPath()->query($query);
+        $matches = $this->xPath->query($query);
         \assert($matches instanceof \DOMNodeList);
         /** @var \DOMNodeList<\DOMElement> $matches */
 
@@ -467,7 +467,7 @@ private static function normalizePropertyNameCallback(array $matches): string
      */
     private function getCssFromAllStyleNodes(): string
     {
-        $styleNodes = $this->getXPath()->query('//style');
+        $styleNodes = $this->xPath->query('//style');
         if ($styleNodes === false) {
             return '';
         }
@@ -518,7 +518,7 @@ private function getNodesToExclude(): array
     private function querySelectorAll(string $selectors, array $options = []): \DOMNodeList
     {
         try {
-            $result = $this->getXPath()->query($this->getCssSelectorConverter()->toXPath($selectors));
+            $result = $this->xPath->query($this->getCssSelectorConverter()->toXPath($selectors));
             \assert($result instanceof \DOMNodeList);
         } catch (ParseException $exception) {
             $alwaysThrowParseException = $options[self::QSA_ALWAYS_THROW_PARSE_EXCEPTION] ?? false;
diff --git a/src/HtmlProcessor/AbstractHtmlProcessor.php b/src/HtmlProcessor/AbstractHtmlProcessor.php
index 67bdf82e..ef1f8194 100644
--- a/src/HtmlProcessor/AbstractHtmlProcessor.php
+++ b/src/HtmlProcessor/AbstractHtmlProcessor.php
@@ -50,9 +50,9 @@ abstract class AbstractHtmlProcessor
     private $domDocument;
 
     /**
-     * @var \DOMXPath|null
+     * @var \DOMXPath
      */
-    private $xPath = null;
+    protected $xPath;
 
     /**
      * The constructor.
@@ -124,19 +124,6 @@ private function setDomDocument(\DOMDocument $domDocument): void
         $this->xPath = new \DOMXPath($domDocument);
     }
 
-    /**
-     * @throws \UnexpectedValueException
-     */
-    protected function getXPath(): \DOMXPath
-    {
-        if (!$this->xPath instanceof \DOMXPath) {
-            $message = self::class . '::setDomDocument() has not yet been called on ' . static::class;
-            throw new \UnexpectedValueException($message, 1617819086);
-        }
-
-        return $this->xPath;
-    }
-
     /**
      * Renders the normalized and processed HTML.
      *
diff --git a/src/HtmlProcessor/CssToAttributeConverter.php b/src/HtmlProcessor/CssToAttributeConverter.php
index 496d5ae6..62e8f9a0 100644
--- a/src/HtmlProcessor/CssToAttributeConverter.php
+++ b/src/HtmlProcessor/CssToAttributeConverter.php
@@ -77,7 +77,7 @@ public function convertCssToVisualAttributes(): self
      */
     private function getAllNodesWithStyleAttribute(): \DOMNodeList
     {
-        $result = $this->getXPath()->query('//*[@style]');
+        $result = $this->xPath->query('//*[@style]');
         \assert($result instanceof \DOMNodeList);
         /** @var \DOMNodeList<\DOMElement> $result */
 
diff --git a/src/HtmlProcessor/HtmlPruner.php b/src/HtmlProcessor/HtmlPruner.php
index 624567ab..1081f996 100644
--- a/src/HtmlProcessor/HtmlPruner.php
+++ b/src/HtmlProcessor/HtmlPruner.php
@@ -32,7 +32,7 @@ final class HtmlPruner extends AbstractHtmlProcessor
      */
     public function removeElementsWithDisplayNone(): self
     {
-        $elementsWithStyleDisplayNone = $this->getXPath()->query(self::DISPLAY_NONE_MATCHER);
+        $elementsWithStyleDisplayNone = $this->xPath->query(self::DISPLAY_NONE_MATCHER);
         \assert($elementsWithStyleDisplayNone instanceof \DOMNodeList);
         if ($elementsWithStyleDisplayNone->length === 0) {
             return $this;
@@ -65,7 +65,7 @@ public function removeElementsWithDisplayNone(): self
     public function removeRedundantClasses(array $classesToKeep = []): self
     {
         /** @var \DOMNodeList<\DOMElement> $elementsWithClassAttribute */
-        $elementsWithClassAttribute = $this->getXPath()->query('//*[@class]');
+        $elementsWithClassAttribute = $this->xPath->query('//*[@class]');
 
         if ($classesToKeep !== []) {
             $this->removeClassesFromElements($elementsWithClassAttribute, $classesToKeep);