diff --git a/htdocs/install/mysql/tables/llx_product.sql b/htdocs/install/mysql/tables/llx_product.sql
index f8faa8f59e6..c8f340e735b 100644
--- a/htdocs/install/mysql/tables/llx_product.sql
+++ b/htdocs/install/mysql/tables/llx_product.sql
@@ -67,7 +67,7 @@ create table llx_product
   volume_units				tinyint      DEFAULT NULL,
   stock						integer,						-- Current physical stock (dernormalized field)
   pmp						double(24,8) DEFAULT 0 NOT NULL,
-  canvas					varchar(32)  DEFAULT 'default@product',
+  canvas					varchar(32)  DEFAULT NULL,
   finished					tinyint      DEFAULT NULL,
   hidden					tinyint      DEFAULT 0,			-- Need permission see also hidden products
   import_key				varchar(14)						-- Import key