diff --git a/db/routines/vn/procedures/company_getSuppliersDebt.sql b/db/routines/vn/procedures/company_getSuppliersDebt.sql
index 5354ef09d..f4814abcc 100644
--- a/db/routines/vn/procedures/company_getSuppliersDebt.sql
+++ b/db/routines/vn/procedures/company_getSuppliersDebt.sql
@@ -169,7 +169,7 @@ BEGIN
             AND vp.supplierFk = rd.supplierFk
             AND vp.companyFk = rd.companyFk
             AND vp.currencyFk = rd.currencyFk
-        WHERE vp.isPayment = FALSE;
+        WHERE NOT vp.isPayment;
 
     SELECT vp.expirationId,
             vp.dated,