diff --git a/packages/client/src/components/form/folder.vue b/packages/client/src/components/form/folder.vue
index 88f50c29c..f5ac369c6 100644
--- a/packages/client/src/components/form/folder.vue
+++ b/packages/client/src/components/form/folder.vue
@@ -21,7 +21,7 @@
 
 <script lang="ts" setup>
 const props = withDefaults(defineProps<{
-	defaultOpen: boolean;
+	defaultOpen?: boolean;
 }>(), {
 	defaultOpen: false,
 });