diff --git a/support/doctype/support_ticket/support_ticket.js b/support/doctype/support_ticket/support_ticket.js
index 3da81d9..4ee4c1d 100644
--- a/support/doctype/support_ticket/support_ticket.js
+++ b/support/doctype/support_ticket/support_ticket.js
@@ -29,17 +29,13 @@
 		erpnext.hide_naming_series();
 		cur_frm.cscript.make_listing(doc);
 		if(!doc.__islocal) {											
-			if(in_list(user_roles,'System Manager')) {
-		      if(doc.status!='Closed') cur_frm.add_custom_button('Close Ticket', cur_frm.cscript['Close Ticket']);	
-			  if(doc.status=='Closed') cur_frm.add_custom_button('Re-Open Ticket', cur_frm.cscript['Re-Open Ticket']);		
-			}else if(doc.allocated_to) {
-			  cur_frm.set_df_property('status','read_only', 1);
-			  if(user==doc.allocated_to && doc.status!='Closed') cur_frm.add_custom_button('Close Ticket', cur_frm.cscript['Close Ticket']);
+			if(user_roles.indexOf("Support Manager")!==-1) {
+				if(doc.status!='Closed') cur_frm.add_custom_button('Close Ticket', cur_frm.cscript['Close Ticket']);
+				if(doc.status=='Closed') cur_frm.add_custom_button('Re-Open Ticket', cur_frm.cscript['Re-Open Ticket']);
 			}
 			
-			cur_frm.set_df_property('subject','read_only', 1);
-			cur_frm.set_df_property('description','hidden', 1);
-			cur_frm.set_df_property('raised_by','read_only', 1);
+			cur_frm.toggle_enable(["subject", "raised_by"], false);
+			cur_frm.toggle_display("description", false);
 		}
 		refresh_field('status');
 	},
diff --git a/support/doctype/support_ticket/support_ticket.py b/support/doctype/support_ticket/support_ticket.py
index 5625f11..8a705f4 100644
--- a/support/doctype/support_ticket/support_ticket.py
+++ b/support/doctype/support_ticket/support_ticket.py
@@ -45,6 +45,10 @@
 	def validate(self):
 		self.update_status()
 		
+		if self.doc.status == "Closed":
+			from webnotes.widgets.form.assign_to import clear
+			clear(self.doc.doctype, self.doc.name)
+		
 	def on_communication_sent(self, comm):
 		webnotes.conn.set(self.doc, 'status', 'Waiting for Customer')
 		if comm.lead and not self.doc.lead: