diff --git a/buying/doctype/purchase_order/purchase_order.js b/buying/doctype/purchase_order/purchase_order.js
index 9967f15a50..d35072d09e 100644
--- a/buying/doctype/purchase_order/purchase_order.js
+++ b/buying/doctype/purchase_order/purchase_order.js
@@ -24,7 +24,7 @@ erpnext.buying.PurchaseOrderController = erpnext.buying.BuyingController.extend(
 				doc.per_billed);
 
 
-			cur_frm.add_custom_button('Send SMS', cur_frm.cscript['Send SMS']);
+			cur_frm.add_custom_button('Send SMS', cur_frm.cscript.send_sms);
 			if(flt(doc.per_received, 2) < 100) 
 				cur_frm.add_custom_button('Make Purchase Receipt', this.make_purchase_receipt);	
 			if(flt(doc.per_billed, 2) < 100) 
diff --git a/stock/doctype/purchase_receipt/purchase_receipt.js b/stock/doctype/purchase_receipt/purchase_receipt.js
index 5333c21be0..9f9aa15de1 100644
--- a/stock/doctype/purchase_receipt/purchase_receipt.js
+++ b/stock/doctype/purchase_receipt/purchase_receipt.js
@@ -20,7 +20,7 @@ erpnext.stock.PurchaseReceiptController = erpnext.buying.BuyingController.extend
 				cur_frm.add_custom_button('Make Purchase Invoice', 
 					this.make_purchase_invoice);
 			}
-			cur_frm.add_custom_button('Send SMS', cur_frm.cscript['Send SMS']);
+			cur_frm.add_custom_button('Send SMS', cur_frm.cscript.send_sms);
 			
 			this.show_stock_ledger();
 			this.show_general_ledger();