diff --git a/src/Utils/Image.php b/src/Utils/Image.php
index bdd2b8332..c954ee6e6 100644
--- a/src/Utils/Image.php
+++ b/src/Utils/Image.php
@@ -115,10 +115,10 @@ class Image
 
 	const EMPTY_GIF = "GIF89a\x01\x00\x01\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00!\xf9\x04\x01\x00\x00\x00\x00,\x00\x00\x00\x00\x01\x00\x01\x00\x00\x02\x02D\x01\x00;";
 
-	private static $formats = [self::JPEG => 'jpeg', self::PNG => 'png', self::GIF => 'gif', self::WEBP => 'webp'];
+	protected static $formats = [self::JPEG => 'jpeg', self::PNG => 'png', self::GIF => 'gif', self::WEBP => 'webp'];
 
 	/** @var resource */
-	private $image;
+	protected $image;
 
 
 	/**