diff --git a/packages/builder/src/components/userInterface/AppPreview/CurrentItemPreview.svelte b/packages/builder/src/components/userInterface/AppPreview/CurrentItemPreview.svelte
index 5e5e82ad90..02250a0fe1 100644
--- a/packages/builder/src/components/userInterface/AppPreview/CurrentItemPreview.svelte
+++ b/packages/builder/src/components/userInterface/AppPreview/CurrentItemPreview.svelte
@@ -25,6 +25,7 @@
     )
   $: hasComponent = !!$store.currentPreviewItem
   $: {
+    style = ""
     // Apply the CSS from the currently selected page and its screens
     const currentPage = $store.pages[$store.currentPageName]
     styles += currentPage._css