diff --git a/packages/json/src/import-widget.ts b/packages/json/src/import-widget.ts
index 5071b2bcb..3dcf058c4 100644
--- a/packages/json/src/import-widget.ts
+++ b/packages/json/src/import-widget.ts
@@ -42,6 +42,7 @@ export function processItem(
     // eslint-disable-next-line no-new-func
     return Function(`return ${(item as string).replace(/calc\(/, '').replace(/\)$/, '')}`)()
   }
+  return item
 }
 
 export function processOptions(