diff --git a/modules/backend/widgets/form/partials/_field_checkbox.htm b/modules/backend/widgets/form/partials/_field_checkbox.htm
index 5b29d8eca..67675d46f 100644
--- a/modules/backend/widgets/form/partials/_field_checkbox.htm
+++ b/modules/backend/widgets/form/partials/_field_checkbox.htm
@@ -1,5 +1,10 @@
 <!-- Checkbox -->
 <div class="checkbox custom-checkbox">
+    <input
+        type="hidden"
+        name="<?= $field->getName() ?>"
+        value="0"
+        <?= $this->previewMode ? 'disabled="disabled"' : '' ?>>    
     <input
         type="checkbox"
         id="<?= $field->getId() ?>"