diff --git a/htdocs/install/mysql/tables/llx_product_customer_price_log.sql b/htdocs/install/mysql/tables/llx_product_customer_price_log.sql
index 699060cdc98..1d728dd2486 100644
--- a/htdocs/install/mysql/tables/llx_product_customer_price_log.sql
+++ b/htdocs/install/mysql/tables/llx_product_customer_price_log.sql
@@ -24,7 +24,8 @@ create table llx_product_customer_price_log
   entity				integer DEFAULT 1 NOT NULL,	   -- multi company id
   datec                       datetime,
   fk_product			integer NOT NULL,
-  fk_soc				integer NOT NULL,	   
+  fk_soc				integer DEFAULT 0 NOT NULL,	
+    price_level		smallint NULL DEFAULT 1,
   price						double(24,8) DEFAULT 0,
   price_ttc					double(24,8) DEFAULT 0,
   price_min					double(24,8) DEFAULT 0,