diff --git a/web/src/zform.js b/web/src/zform.js
index f1fee2acf1..77cdbef0cc 100644
--- a/web/src/zform.js
+++ b/web/src/zform.js
@@ -9,6 +9,7 @@ import * as transmit from "./transmit";
 const zform_widget_extra_data_schema = z.object({
     choices: z.array(
         z.object({
+            type: z.string(),
             long_name: z.string(),
             reply: z.string(),
             short_name: z.string(),