diff --git a/packages/core/client/src/schema-initializer/components/assigned-field/AssignedField.tsx b/packages/core/client/src/schema-initializer/components/assigned-field/AssignedField.tsx
index 478c0562d1..c17d095413 100644
--- a/packages/core/client/src/schema-initializer/components/assigned-field/AssignedField.tsx
+++ b/packages/core/client/src/schema-initializer/components/assigned-field/AssignedField.tsx
@@ -151,7 +151,7 @@ export const AssignedFieldInner = (props: AssignedFieldProps) => {
 
 export const AssignedField = (props) => {
   const { form } = useFormBlockContext();
-  const { name } = useBlockContext();
+  const { name } = useBlockContext() || {};
   return (
     <BlockContext.Provider value={{ name: form ? 'form' : name }}>
       <AssignedFieldInner {...props} />