diff --git a/playground/rmgi/demo/3p-form3-uischema.json b/playground/rmgi/demo/3p-form3-uischema.json
index ed5a5aca..1360bb82 100644
--- a/playground/rmgi/demo/3p-form3-uischema.json
+++ b/playground/rmgi/demo/3p-form3-uischema.json
@@ -1,4 +1,4 @@
 {
     "name":{"ui:options":{"readonly": true}},
-    "name":{"ui:options":{"readonly": true}}
+    "rea":{"ui:options":{"readonly": true}}
 }
\ No newline at end of file