diff --git a/addons/stock/stock.py b/addons/stock/stock.py
index 40f3f4a2b43..591dca6652c 100644
--- a/addons/stock/stock.py
+++ b/addons/stock/stock.py
@@ -1303,10 +1303,11 @@ class stock_picking(osv.osv):
             elif ops.product_id.id:
                 #Check moves with same product
                 qty_to_assign = uom_obj._compute_qty_obj(cr, uid, ops.product_uom_id, ops.product_qty, ops.product_id.uom_id, context=context)
+                precision_rounding = ops.product_id.uom_id.rounding
                 for move_dict in prod2move_ids.get(ops.product_id.id, []):
                     move = move_dict['move']
                     for quant in move.reserved_quant_ids:
-                        if not qty_to_assign > 0:
+                        if float_compare(qty_to_assign, 0, precision_rounding=precision_rounding) != 1:
                             break
                         if quant.id in quants_in_package_done:
                             continue
@@ -1322,7 +1323,7 @@ class stock_picking(osv.osv):
                             max_qty_on_link = min(quant.qty, qty_to_assign)
                             qty_on_link = _create_link_for_quant(ops.id, quant, max_qty_on_link)
                             qty_to_assign -= qty_on_link
-                qty_assign_cmp = float_compare(qty_to_assign, 0, precision_rounding=ops.product_id.uom_id.rounding)
+                qty_assign_cmp = float_compare(qty_to_assign, 0, precision_rounding=precision_rounding)
                 if qty_assign_cmp > 0:
                     #qty reserved is less than qty put in operations. We need to create a link but it's deferred after we processed
                     #all the quants (because they leave no choice on their related move and needs to be processed with higher priority)