diff --git a/panel/src/components/Forms/FormControls.vue b/panel/src/components/Forms/FormControls.vue
index d64a5c6eb1..98ee086fec 100644
--- a/panel/src/components/Forms/FormControls.vue
+++ b/panel/src/components/Forms/FormControls.vue
@@ -64,7 +64,7 @@ export default {
 		/**
 		 * Preview URL for changes
 		 */
-		preview: String
+		preview: [String, Boolean]
 	},
 	emits: ["discard", "submit"],
 	computed: {
diff --git a/panel/src/components/Views/Pages/SiteView.vue b/panel/src/components/Views/Pages/SiteView.vue
index 8527594275..235d16771e 100644
--- a/panel/src/components/Views/Pages/SiteView.vue
+++ b/panel/src/components/Views/Pages/SiteView.vue
@@ -20,7 +20,7 @@
 					:is-locked="isLocked"
 					:is-unsaved="isUnsaved"
 					:modified="modified"
-					:preview="permissions.preview ? api + '/preview/compare' : false"
+					:preview="api + '/preview/compare'"
 					@discard="onDiscard"
 					@submit="onSubmit"
 				/>