diff --git a/erpnext/selling/page/point_of_sale/pos_controller.js b/erpnext/selling/page/point_of_sale/pos_controller.js
index 4652ca8edd1..2becd9e9c19 100644
--- a/erpnext/selling/page/point_of_sale/pos_controller.js
+++ b/erpnext/selling/page/point_of_sale/pos_controller.js
@@ -556,9 +556,7 @@ erpnext.PointOfSale.Controller = class {
 			const item_row_exists = !$.isEmptyObject(item_row);
 
 			const from_selector = field === "qty" && value === "+1";
-			if (from_selector) {
-				value = flt(item_row.qty) + 1; // increase qty by 1 UOM
-			}
+			if (from_selector) value = flt(item_row.qty) + flt(value);
 
 			if (item_row_exists) {
 				if (field === "qty") value = flt(value);