diff --git a/addons/point_of_sale/static/src/js/models.js b/addons/point_of_sale/static/src/js/models.js
index 48b32d4a99e..3ba1b38a418 100644
--- a/addons/point_of_sale/static/src/js/models.js
+++ b/addons/point_of_sale/static/src/js/models.js
@@ -735,7 +735,7 @@ function openerp_pos_models(instance, module){ //module is instance.point_of_sal
         },
         // return the unit of measure of the product
         get_unit: function(){
-            var unit_id = (this.product.uos_id || this.product.uom_id);
+            var unit_id = this.product.uom_id;
             if(!unit_id){
                 return undefined;
             }
diff --git a/addons/point_of_sale/static/src/js/screens.js b/addons/point_of_sale/static/src/js/screens.js
index 0d3933e0b34..88d04a849ed 100644
--- a/addons/point_of_sale/static/src/js/screens.js
+++ b/addons/point_of_sale/static/src/js/screens.js
@@ -475,7 +475,7 @@ function openerp_pos_screens(instance, module){ //module is instance.point_of_sa
             if(!product || !this.pos){
                 return defaultstr;
             }
-            var unit_id = product.uos_id || product.uom_id;
+            var unit_id = product.uom_id;
             if(!unit_id){
                 return defaultstr;
             }