diff --git a/public/js/wn/form/attachments.js b/public/js/wn/form/attachments.js
index d5158e3cf2..9a2a976004 100644
--- a/public/js/wn/form/attachments.js
+++ b/public/js/wn/form/attachments.js
@@ -161,7 +161,7 @@ wn.ui.form.Attachments = Class.extend({
 	},
 	refresh_attachment_select_fields: function() {
 		for(var i=0; i<this.frm.fields.length; i++) {
-			if(this.frm.fields[i].df.options=="attach_files:") {
+			if(this.frm.fields[i].df.options=="attach_files:" && this.frm.fields[i].$input) {
 				var fieldname = this.frm.fields[i].df.fieldname;
 				var selected_option = this.frm.fields[i].$input.find("option:selected").val();
 				
diff --git a/public/js/wn/form/layout.js b/public/js/wn/form/layout.js
index bee2d9a43e..281e39a7fa 100644
--- a/public/js/wn/form/layout.js
+++ b/public/js/wn/form/layout.js
@@ -36,6 +36,8 @@ wn.ui.form.Layout = Class.extend({
 			fieldobj.docname = me.frm.docname;
 			fieldobj.df = wn.meta.get_docfield(me.frm.doctype, 
 				fieldobj.df.fieldname, me.frm.docname);
+			// on form change, permissions can change
+			fieldobj.perm = me.frm.perm;
 			fieldobj.refresh && fieldobj.refresh();
 		});
 		$(this.frm.wrapper).trigger("refresh-fields");