diff --git a/src/index.js b/src/index.js
index e478142..8741e21 100644
--- a/src/index.js
+++ b/src/index.js
@@ -17,7 +17,6 @@ import { COLUMNSBLOCK } from './constants';
 import { cloneColumnsBlockData } from './utils';
 
 import { getBlocks } from '@plone/volto/helpers';
-import { addStylingFieldsetSchemaEnhancer } from './ColumnsBlock/schema';
 
 const extendedSchema = (config) => {
   const choices = Object.keys(config.blocks.blocksConfig)