diff --git a/addons/point_of_sale/controllers/main.py b/addons/point_of_sale/controllers/main.py
index 425a7e3d7f8..5e4d8f8a75a 100644
--- a/addons/point_of_sale/controllers/main.py
+++ b/addons/point_of_sale/controllers/main.py
@@ -72,19 +72,19 @@ class PointOfSaleController(openerpweb.Controller):
         return getattr(self, method)(request, **kwargs)
 
     @openerpweb.jsonrequest
-    def scan_item_success(self, request):
+    def scan_item_success(self, request, ean):
         """
         A product has been scanned with success
         """
-        print 'scan_item_success'
+        print 'scan_item_success: ' + str(ean)
         return 
 
     @openerpweb.jsonrequest
-    def scan_item_error_unrecognized(self, request):
+    def scan_item_error_unrecognized(self, request, ean):
         """
         A product has been scanned without success
         """
-        print 'scan_item_error_unrecognized'
+        print 'scan_item_error_unrecognized: ' + str(ean)
         return 
 
     @openerpweb.jsonrequest
diff --git a/addons/point_of_sale/static/src/js/devices.js b/addons/point_of_sale/static/src/js/devices.js
index 1c1902cdf8f..34efb993db3 100644
--- a/addons/point_of_sale/static/src/js/devices.js
+++ b/addons/point_of_sale/static/src/js/devices.js
@@ -57,13 +57,13 @@ function openerp_pos_devices(instance,module){ //module is instance.point_of_sal
         //a product has been scanned and recognized with success
         // ean is a parsed ean object
         scan_item_success: function(ean){
-            this.message('scan_item_success',ean);
+            this.message('scan_item_success',{ean: ean});
         },
 
         // a product has been scanned but not recognized
         // ean is a parsed ean object
         scan_item_error_unrecognized: function(ean){
-            this.message('scan_item_error_unrecognized',ean);
+            this.message('scan_item_error_unrecognized',{ean: ean});
         },
 
         //the client is asking for help