diff --git a/htdocs/install/mysql/migration/20.0.0-21.0.0.sql b/htdocs/install/mysql/migration/20.0.0-21.0.0.sql
index 616c38a53b20a..33b86a4d8dfe0 100644
--- a/htdocs/install/mysql/migration/20.0.0-21.0.0.sql
+++ b/htdocs/install/mysql/migration/20.0.0-21.0.0.sql
@@ -130,4 +130,6 @@ ALTER TABLE llx_product_attribute_combination2val ADD INDEX idx_product_att_com2
 
 ALTER TABLE llx_societe ADD COLUMN ip varchar(250);
 ALTER TABLE llx_recruitment_recruitmentcandidature ADD COLUMN ip varchar(250);
-ALTER TABLE llx_socpeople ADD COLUMN ip varchar(250);
\ No newline at end of file
+ALTER TABLE llx_socpeople ADD COLUMN ip varchar(250);
+
+ALTER TABLE llx_ecm_files ADD COLUMN agenda_id integer;
diff --git a/htdocs/install/mysql/tables/llx_ecm_files.sql b/htdocs/install/mysql/tables/llx_ecm_files.sql
index 68a620c3e8192..94dcc7d5a6dc2 100644
--- a/htdocs/install/mysql/tables/llx_ecm_files.sql
+++ b/htdocs/install/mysql/tables/llx_ecm_files.sql
@@ -28,12 +28,13 @@ CREATE TABLE llx_ecm_files
   filename          varchar(255) NOT NULL,			-- file name only without any directory
   src_object_type   varchar(64),	         		-- Source object type ('proposal', 'invoice', ...) - object->table_element
   src_object_id     integer,		             	-- Source object id
+  agenda_id         integer,                        -- Id of the event created at same time than the upload of the file
   fullpath_orig		varchar(750),	                -- full path of original filename, when file is uploaded from a local computer
   description		text,
   keywords          varchar(750),                   -- list of keywords, separated with comma. Must be limited to most important keywords.
   cover             text,                           -- is this file a file to use for a cover
   position          integer,                        -- position of file among others
-  gen_or_uploaded   varchar(12),                    -- 'generated' or 'uploaded' 
+  gen_or_uploaded   varchar(12),                    -- 'generated' or 'uploaded'
   extraparams		varchar(255),					-- for stocking other parameters with json format
   date_c			datetime,
   tms				timestamp DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,