diff --git a/app/views/admin/p_product_stocks/import_stocks.html.haml b/app/views/admin/p_product_stocks/import_stocks.html.haml
index 539aa05..b47fd91 100644
--- a/app/views/admin/p_product_stocks/import_stocks.html.haml
+++ b/app/views/admin/p_product_stocks/import_stocks.html.haml
@@ -52,7 +52,7 @@
               %tr 
                 %td
                   =check_box_tag :"ids[]", ps.id, true if ps
-                  =hidden_field_tag "ps_#{ps.id}", row["Stock const"]
+                  =hidden_field_tag "ps_#{ps.id}", row["Stock const"] if ps
                   
                 %td=row["Ref variante"]
                 %td=row["ID variante"]