diff --git a/purchase_fix_get_move_done_rounding.diff b/purchase_fix_get_move_done_rounding.diff
new file mode 100644
index 0000000..558cf50
--- /dev/null
+++ b/purchase_fix_get_move_done_rounding.diff
@@ -0,0 +1,12 @@
+diff -r 39138b20bd95 purchase.py
+--- a/trytond/trytond/modules/purchase/purchase.py	Mon Nov 02 16:10:40 2015 +0100
++++ b/trytond/trytond/modules/purchase/purchase.py	Wed Nov 11 11:44:30 2015 +0100
+@@ -1011,7 +1011,7 @@
+                 break
+             quantity -= Uom.compute_qty(move.uom, move.quantity, self.unit)
+         if done:
+-            if quantity > 0.0:
++            if quantity > self.unit.rounding:
+                 done = False
+         return done
+ 
diff --git a/series b/series
index 092c45f..ad20563 100644
--- a/series
+++ b/series
@@ -80,3 +80,4 @@ issue5118.diff
 #024726_account_payment_type_remove_company.diff
 #stock_lot_improve_sync_inventory_to_outgoing.diff
 #stock_lot_fix_pick_product_without_outgoing_moves.diff
+#purchase_fix_get_move_done_rounding.diff