diff --git a/packages/client/src/components/app/forms/RelationshipField.svelte b/packages/client/src/components/app/forms/RelationshipField.svelte
index a85b636851..9439fd2239 100644
--- a/packages/client/src/components/app/forms/RelationshipField.svelte
+++ b/packages/client/src/components/app/forms/RelationshipField.svelte
@@ -180,7 +180,7 @@
       value &&
       Array.isArray(value)
     ) {
-      value = value[0]
+      value = value[0] || null
     }
 
     const changed = fieldApi.setValue(value)