diff --git a/client/components/fields/editor/CustomVocabularies.tsx b/client/components/fields/editor/CustomVocabularies.tsx
index d860adae7..5e85cd414 100644
--- a/client/components/fields/editor/CustomVocabularies.tsx
+++ b/client/components/fields/editor/CustomVocabularies.tsx
@@ -30,6 +30,7 @@ class CustomVocabulariesComponent extends React.PureComponent<IProps> {
                 ))}
                 fieldProps={{
                     item: this.props.item,
+                    diff: this.props.item,
                     readOnly: this.props.disabled,
                     onChange: this.props.onChange,
                     errors: this.props.errors,