diff --git a/db/routines/vn/procedures/sale_getProblems.sql b/db/routines/vn/procedures/sale_getProblems.sql
index b50b4784d..cd65bb81c 100644
--- a/db/routines/vn/procedures/sale_getProblems.sql
+++ b/db/routines/vn/procedures/sale_getProblems.sql
@@ -127,7 +127,7 @@ BEGIN
 							LEFT JOIN tItemShelvingStock_byWarehouse issw ON issw.itemFk = i.id
 								AND issw.warehouseFk = t.warehouseFk 
 						WHERE IFNULL(v.visible, 0) < s.quantity
-							AND IFNULL(av.available, 0) < s.quantity
+							AND IFNULL(av.available, 0) < 0
 							AND IFNULL(issw.visible, 0) < s.quantity
 							AND NOT s.isPicked
 							AND NOT s.reserved
@@ -190,7 +190,7 @@ BEGIN
 							LEFT JOIN tItemShelvingStock_byWarehouse issw ON issw.itemFk = i.id
 								AND issw.warehouseFk = t.warehouseFk 
 						WHERE IFNULL(v.visible, 0) < s.quantity
-							AND IFNULL(av.available, 0) >= s.quantity
+							AND IFNULL(av.available, 0) >= 0
 							AND IFNULL(issw.visible, 0) < s.quantity
 							AND s.quantity > 0
 							AND NOT s.isPicked