diff --git a/src/Entity/Card.php b/src/Entity/Card.php
index 93a9241a..66c6794c 100755
--- a/src/Entity/Card.php
+++ b/src/Entity/Card.php
@@ -796,7 +796,7 @@ public function getImageUrl()
     /**
      * @inheritdoc
      */
-    public function setImageUrl(string $imageUrl)
+    public function setImageUrl(string $imageUrl = null)
     {
         $this->imageUrl = $imageUrl;
     }
diff --git a/src/Entity/CardInterface.php b/src/Entity/CardInterface.php
index 79bad60c..acb162e1 100644
--- a/src/Entity/CardInterface.php
+++ b/src/Entity/CardInterface.php
@@ -333,9 +333,9 @@ public function setIsMultiple(bool $isMultiple);
     public function getImageUrl();
 
     /**
-     * @param string $imageUrl
+     * @param string|null $imageUrl
      */
-    public function setImageUrl(string $imageUrl);
+    public function setImageUrl(string $imageUrl = null);
 
     /**
      * Checks if this card has the "Shadow" keyword.