diff --git a/frappe/public/js/frappe/socketio_client.js b/frappe/public/js/frappe/socketio_client.js
index 6e55630d56..9983a35779 100644
--- a/frappe/public/js/frappe/socketio_client.js
+++ b/frappe/public/js/frappe/socketio_client.js
@@ -153,7 +153,7 @@ frappe.socketio = {
 	doc_open: function(doctype, docname) {
 		// notify that the user has opened this doc, if not already notified
 		if(!frappe.socketio.last_doc
-			|| (frappe.socketio.last_doc[0]!=doctype && frappe.socketio.last_doc[0]!=docname)) {
+			|| (frappe.socketio.last_doc[0]!=doctype && frappe.socketio.last_doc[1]!=docname)) {
 			frappe.socketio.socket.emit('doc_open', doctype, docname);
 		}
 		frappe.socketio.last_doc = [doctype, docname];