diff --git a/core/lib/Drupal/Core/ProxyClass/File/MimeType/ExtensionMimeTypeGuesser.php b/core/lib/Drupal/Core/ProxyClass/File/MimeType/ExtensionMimeTypeGuesser.php
index d3f3fef6ebb..f771e15b45a 100644
--- a/core/lib/Drupal/Core/ProxyClass/File/MimeType/ExtensionMimeTypeGuesser.php
+++ b/core/lib/Drupal/Core/ProxyClass/File/MimeType/ExtensionMimeTypeGuesser.php
@@ -12,7 +12,7 @@
      *
      * @see \Drupal\Component\ProxyBuilder
      */
-    class ExtensionMimeTypeGuesser implements \Symfony\Component\Mime\MimeTypeGuesserInterface, \Symfony\Component\HttpFoundation\File\MimeType\MimeTypeGuesserInterface
+    class ExtensionMimeTypeGuesser implements \Symfony\Component\Mime\MimeTypeGuesserInterface
     {
 
         use \Drupal\Core\DependencyInjection\DependencySerializationTrait;
diff --git a/core/lib/Drupal/Core/ProxyClass/File/MimeType/MimeTypeGuesser.php b/core/lib/Drupal/Core/ProxyClass/File/MimeType/MimeTypeGuesser.php
index bbc8b16e32e..33ffc6fa760 100644
--- a/core/lib/Drupal/Core/ProxyClass/File/MimeType/MimeTypeGuesser.php
+++ b/core/lib/Drupal/Core/ProxyClass/File/MimeType/MimeTypeGuesser.php
@@ -12,7 +12,7 @@
      *
      * @see \Drupal\Component\ProxyBuilder
      */
-    class MimeTypeGuesser implements \Symfony\Component\HttpFoundation\File\MimeType\MimeTypeGuesserInterface, \Symfony\Component\Mime\MimeTypeGuesserInterface
+    class MimeTypeGuesser implements \Symfony\Component\Mime\MimeTypeGuesserInterface
     {
 
         use \Drupal\Core\DependencyInjection\DependencySerializationTrait;