diff --git a/src/helpers/Cp.php b/src/helpers/Cp.php
index 8018ce6e1dd..3d09e771a97 100644
--- a/src/helpers/Cp.php
+++ b/src/helpers/Cp.php
@@ -2599,7 +2599,7 @@ public static function cardPreviewHtml(FieldLayout $fieldLayout, array $cardElem
             ]);
 
         // get thumb placeholder
-        if ($showThumb) {
+        if ($showThumb ?? $fieldLayout->getThumbField() !== null) {
             $previewThumb = Html::tag('div',
                 Html::tag('div', Cp::iconSvg('image'), ['class' => 'cp-icon']),
                 ['class' => 'cvd-thumbnail']