diff --git a/src/Twig/Functions/IconExtension.php b/src/Twig/Functions/IconExtension.php
index 0cb5c8e..b092417 100644
--- a/src/Twig/Functions/IconExtension.php
+++ b/src/Twig/Functions/IconExtension.php
@@ -4,11 +4,8 @@ declare(strict_types=1);
 
 namespace Pcm\IconBundle\Twig\Functions;
 
-use Exception;
-use InvalidArgumentException;
 use Twig\Extension\AbstractExtension;
 use Twig\TwigFunction;
-use TypeError;
 
 final class IconExtension extends AbstractExtension
 {
@@ -42,7 +39,7 @@ final class IconExtension extends AbstractExtension
         $rawSvgMarkup = $this->getSvgMarkup($iconFilepath);
         $cleanSvgMarkup = $this->cleanSvgMarkup($rawSvgMarkup);
 
-        if ($this->titleIsANonEmptyString($options['title'])) {
+        if ($this->isNonEmptyString($options['title'])) {
             $markup = $this->addTitleToMarkup($cleanSvgMarkup, $options['title']);
         }
 
@@ -76,14 +73,14 @@ final class IconExtension extends AbstractExtension
         return preg_replace('/<title>.*<\/title>/', '', $markup);
     }
 
-    private function titleIsANonEmptyString(mixed $title): bool
+    private function isNonEmptyString(mixed $title): bool
     {
         if (!is_string($title) && null !== $title)
-            throw new TypeError('Title must be a string!');
+            throw new \TypeError('Title must be a string!');
 
 
         if ('' === $title)
-            throw new InvalidArgumentException('Title string must not be empty!');
+            throw new \InvalidArgumentException('Title string must not be empty!');
 
         return true;
     }
@@ -98,4 +95,4 @@ final class IconExtension extends AbstractExtension
     }
 }
 
-class IconNotFound extends Exception {};
+class IconNotFound extends \Exception {};