diff --git a/typo3/sysext/frontend/Classes/ContentObject/ImageContentObject.php b/typo3/sysext/frontend/Classes/ContentObject/ImageContentObject.php
index 241d4c569728541324d093787e557ef12e234755..0b9b2c54e17ed6ca9dd6b72b806f486e96bd25de 100644
--- a/typo3/sysext/frontend/Classes/ContentObject/ImageContentObject.php
+++ b/typo3/sysext/frontend/Classes/ContentObject/ImageContentObject.php
@@ -39,7 +39,7 @@ class ImageContentObject extends AbstractContentObject
             return '';
         }
 
-        $theValue = $this->cImage($conf['file'], $conf);
+        $theValue = $this->cImage($conf['file'] ?? '', $conf);
         if (isset($conf['stdWrap.'])) {
             $theValue = $this->cObj->stdWrap($theValue, $conf['stdWrap.']);
         }