diff --git a/modules/backend/formwidgets/FileUpload.php b/modules/backend/formwidgets/FileUpload.php
index 4d3d3fb60..4ce1dd100 100644
--- a/modules/backend/formwidgets/FileUpload.php
+++ b/modules/backend/formwidgets/FileUpload.php
@@ -121,6 +121,10 @@ class FileUpload extends FormWidgetBase
      */
     protected function prepareVars()
     {
+        if ($this->formField->disabled) {
+            $this->previewMode = true;
+        }
+
         if ($this->previewMode) {
             $this->useCaption = false;
         }
diff --git a/modules/backend/widgets/form/partials/_field_balloon-selector.htm b/modules/backend/widgets/form/partials/_field_balloon-selector.htm
index 3261ac99e..de4717c88 100644
--- a/modules/backend/widgets/form/partials/_field_balloon-selector.htm
+++ b/modules/backend/widgets/form/partials/_field_balloon-selector.htm
@@ -5,7 +5,7 @@
 <div
     data-control="balloon-selector"
     id="<?= $field->getId() ?>"
-    class="control-balloon-selector <?= $this->previewMode ? 'control-disabled' : '' ?>"
+    class="control-balloon-selector <?= $this->previewMode || $field->disabled ? 'control-disabled' : '' ?>"
     <?= $field->getAttributes() ?>>
     <ul>
         <?php foreach ($fieldOptions as $value => $text): ?>