diff --git a/htdocs/install/mysql/migration/3.1.0-3.2.0.sql b/htdocs/install/mysql/migration/3.1.0-3.2.0.sql
index ad8aebf52a9..d7b183c72ee 100755
--- a/htdocs/install/mysql/migration/3.1.0-3.2.0.sql
+++ b/htdocs/install/mysql/migration/3.1.0-3.2.0.sql
@@ -11,6 +11,8 @@
 
 UPDATE llx_c_paper_format SET active=1 WHERE active=0;
 
+ALTER TABLE llx_actioncomm ADD COLUMN ref_ext varchar(128) after id;
+
 ALTER TABLE llx_product_fournisseur_price ADD COLUMN fk_availability integer AFTER fk_product_fournisseur;
 
 ALTER TABLE llx_element_element MODIFY COLUMN sourcetype varchar(32) NOT NULL;
diff --git a/htdocs/install/mysql/tables/llx_actioncomm.sql b/htdocs/install/mysql/tables/llx_actioncomm.sql
index d451d209844..7f291f0b23e 100644
--- a/htdocs/install/mysql/tables/llx_actioncomm.sql
+++ b/htdocs/install/mysql/tables/llx_actioncomm.sql
@@ -23,6 +23,7 @@
 create table llx_actioncomm
 (
   id				integer AUTO_INCREMENT PRIMARY KEY,
+  ref_ext			varchar(128),
   entity			integer DEFAULT 1 NOT NULL,	-- multi company id
   datep				datetime,						-- date debut planifiee
   datep2			datetime,						-- deprecated