diff --git a/playground/rmgi/demo/3p-form2-uischema.json b/playground/rmgi/demo/3p-form2-uischema.json
index f621bbb9..3ce53f8e 100644
--- a/playground/rmgi/demo/3p-form2-uischema.json
+++ b/playground/rmgi/demo/3p-form2-uischema.json
@@ -1,4 +1,3 @@
 {"name":{     "ui:options": {
         "readonly": true
-      }}}
-      \
\ No newline at end of file
+      }}}
\ No newline at end of file