diff --git a/app/views/posts/attributes/_boolean.haml b/app/views/posts/attributes/_boolean.haml
index e07feca4..6928ebd7 100644
--- a/app/views/posts/attributes/_boolean.haml
+++ b/app/views/posts/attributes/_boolean.haml
@@ -1,5 +1,5 @@
 .form-check
-  = hidden_field_tag "#{base}[#{attribute}]", '0', id: ''
+  = hidden_field_tag "#{base}[#{attribute}]", '0', id: nil
   .custom-control.custom-switch
     = check_box_tag "#{base}[#{attribute}]", '1', metadata.value,
       class: "custom-control-input #{invalid(post, attribute)}",