diff --git a/htdocs/install/mysql/tables/llx_product_fournisseur_price.sql b/htdocs/install/mysql/tables/llx_product_fournisseur_price.sql
index 725d2bb30e2..25b295ec383 100644
--- a/htdocs/install/mysql/tables/llx_product_fournisseur_price.sql
+++ b/htdocs/install/mysql/tables/llx_product_fournisseur_price.sql
@@ -34,7 +34,7 @@ create table llx_product_fournisseur_price
   quantity				double,
   remise_percent		double NOT NULL DEFAULT 0,
   remise				double NOT NULL DEFAULT 0,
-  unitprice				double(24,8) DEFAULT 0,		-- unit price without tax
+  unitprice				double(24,8) DEFAULT 0,		-- unit price without tax (discount not taken into account, so rounding of price/quantity)
   charges				double(24,8) DEFAULT 0,		-- to store transport cost. Constant PRODUCT_CHARGES must be set to see it.
   default_vat_code	    varchar(10),
   barcode                       varchar(180) DEFAULT NULL,          -- barcode