diff --git a/erpnext/manufacturing/doctype/work_order/work_order.js b/erpnext/manufacturing/doctype/work_order/work_order.js
index 1789a1f..cdbce33 100644
--- a/erpnext/manufacturing/doctype/work_order/work_order.js
+++ b/erpnext/manufacturing/doctype/work_order/work_order.js
@@ -342,7 +342,7 @@
 	},
 
 	project: function(frm) {
-		if(!erpnext.in_production_item_onchange) {
+		if(!erpnext.in_production_item_onchange && !frm.doc.bom_no) {
 			frm.trigger("production_item");
 		}
 	},