diff --git a/typo3/sysext/backend/Classes/Form/Container/FileReferenceContainer.php b/typo3/sysext/backend/Classes/Form/Container/FileReferenceContainer.php
index 6af361443787f04a747b37b038962b898b3919d1..9549200971921d3449b799a8913a97656cd95ffe 100644
--- a/typo3/sysext/backend/Classes/Form/Container/FileReferenceContainer.php
+++ b/typo3/sysext/backend/Classes/Form/Container/FileReferenceContainer.php
@@ -251,7 +251,7 @@ class FileReferenceContainer extends AbstractContainer
                             $thumbnail = '<img src="' . htmlspecialchars($imageUrl) . '" ' .
                                 'width="' . $processedImage->getProperty('width') . '" ' .
                                 'height="' . $processedImage->getProperty('height') . '" ' .
-                                'alt="' . $altText . '" ' .
+                                'alt="" ' .
                                 'title="' . $altText . '" ' .
                                 'loading="lazy">';
                         }