diff --git a/packages/client/src/components/app/forms/AttachmentField.svelte b/packages/client/src/components/app/forms/AttachmentField.svelte
index 63f6d2b39b..b38d305a7d 100644
--- a/packages/client/src/components/app/forms/AttachmentField.svelte
+++ b/packages/client/src/components/app/forms/AttachmentField.svelte
@@ -20,7 +20,7 @@
   let fieldState
   let fieldApi
 
-  $: isSingle = schema?.type === FieldType.ATTACHMENT_SINGLE
+  $: isSingle = type === FieldType.ATTACHMENT_SINGLE
   $: value =
     isSingle && !Array.isArray(fieldState?.value)
       ? fieldState?.value