diff --git a/pandora_console/ChangeLog b/pandora_console/ChangeLog
index 50f94d866f..fdb506990d 100644
--- a/pandora_console/ChangeLog
+++ b/pandora_console/ChangeLog
@@ -1,3 +1,11 @@
+2012-01-27  Vanessa Gil  <vanessa.gil@artica.es>
+
+	* pandoradb.sql
+	  extras/pandoradb_migrate_4.0.x_to_4.1.mysql.sql
+	  extras/pandoradb_migrate_4.0.x_to_4.1.oracle.sql
+	  extras/pandoradb_migrate_4.0.x_to_4.1.postgreSQL.sql: Added delete cascade
+	in tplanned_dowtime_agents.
+
 2012-01-27 Juan Manuel Ramon <juanmanuel.ramon@artica.es>
 
 	* include/graphs/functions_fsgraph.php: Improved units in flash 
diff --git a/pandora_console/extras/pandoradb_migrate_4.0.x_to_4.1.mysql.sql b/pandora_console/extras/pandoradb_migrate_4.0.x_to_4.1.mysql.sql
index a829d9afc1..396b860acf 100644
--- a/pandora_console/extras/pandoradb_migrate_4.0.x_to_4.1.mysql.sql
+++ b/pandora_console/extras/pandoradb_migrate_4.0.x_to_4.1.mysql.sql
@@ -84,3 +84,11 @@ CREATE TABLE IF NOT EXISTS `talert_special_days` (
 -- -----------------------------------------------------
 
 ALTER TABLE `talert_templates` ADD COLUMN `special_day` tinyint(1) DEFAULT '0';
+
+-- -----------------------------------------------------
+-- Table `tplanned_downtime_agents`
+-- -----------------------------------------------------
+
+ALTER TABLE tplanned_downtime_agents
+ADD FOREIGN KEY(`id_downtime`) REFERENCES tplanned_downtime(`id`)
+ON DELETE CASCADE;
diff --git a/pandora_console/extras/pandoradb_migrate_4.0.x_to_4.1.oracle.sql b/pandora_console/extras/pandoradb_migrate_4.0.x_to_4.1.oracle.sql
index cca821e0cc..9a6cae8564 100644
--- a/pandora_console/extras/pandoradb_migrate_4.0.x_to_4.1.oracle.sql
+++ b/pandora_console/extras/pandoradb_migrate_4.0.x_to_4.1.oracle.sql
@@ -88,3 +88,13 @@ CREATE OR REPLACE TRIGGER talert_special_days_inc BEFORE INSERT ON talert_specia
 -- -----------------------------------------------------
 
 alter table talert_templates add (special_day NUMBER(5,0) default 0);
+
+-- -----------------------------------------------------
+-- Table `tplanned_downtime_agents`
+-- -----------------------------------------------------
+
+alter table tplanned_downtime_agents
+add constraint tplanned_downtimes_foreign_key
+foreign key (id_downtime)
+references tplanned_downtime (id);
+
diff --git a/pandora_console/extras/pandoradb_migrate_4.0.x_to_4.1.postgreSQL.sql b/pandora_console/extras/pandoradb_migrate_4.0.x_to_4.1.postgreSQL.sql
index f0bf525322..5e9a7830a9 100644
--- a/pandora_console/extras/pandoradb_migrate_4.0.x_to_4.1.postgreSQL.sql
+++ b/pandora_console/extras/pandoradb_migrate_4.0.x_to_4.1.postgreSQL.sql
@@ -74,3 +74,13 @@ CREATE TABLE "talert_special_days" (
 -- -----------------------------------------------------
 
 ALTER TABLE "talert_templates" ADD COLUMN "special_day" SMALLINT default 0;
+
+-- -----------------------------------------------------
+-- Table `tplanned_downtime_agents`
+-- -----------------------------------------------------
+
+ALTER TABLE "tplanned_downtime_agents"
+ADD CONSTRAINT downtime_foreign
+FOREIGN KEY("id_downtime")
+REFERENCES "tplanned_downtime"("id");
+
diff --git a/pandora_console/pandoradb.sql b/pandora_console/pandoradb.sql
index 4726da6dc0..c6aee04421 100644
--- a/pandora_console/pandoradb.sql
+++ b/pandora_console/pandoradb.sql
@@ -997,7 +997,7 @@ CREATE TABLE IF NOT EXISTS `tplanned_downtime` (
 CREATE TABLE IF NOT EXISTS `tplanned_downtime_agents` (
   `id` int(20) unsigned NOT NULL auto_increment,
   `id_agent` mediumint(8) unsigned NOT NULL default '0',
-  `id_downtime` mediumint(8) unsigned NOT NULL default '0',
+  `id_downtime` mediumint(8) NOT NULL default '0',
   PRIMARY KEY  (`id`),
   FOREIGN KEY (`id_downtime`) REFERENCES tplanned_downtime(`id`)
 	ON DELETE CASCADE