diff --git a/local/conf/LSobjects/config.LSobjects.LSsupannEntite.php b/local/conf/LSobjects/config.LSobjects.LSsupannEntite.php
index dee33bc..4467ceb 100644
--- a/local/conf/LSobjects/config.LSobjects.LSsupannEntite.php
+++ b/local/conf/LSobjects/config.LSobjects.LSsupannEntite.php
@@ -20,6 +20,15 @@
 
 ******************************************************************************/
 
+function before_delete_entite($object) {
+  $entite = new LSsupannEntite();
+  if ($entite->listChildren($object)) {
+      LSerror::addErrorCode('Cette entité a des entités filles, vous ne pouvez pas la supprimer');
+      return false;
+  }
+  return $false;
+}
+
 $GLOBALS['LSobjects']['LSsupannEntite'] = array (
   'objectclass' => array(
     'supannEntite',
@@ -31,6 +40,9 @@ $GLOBALS['LSobjects']['LSsupannEntite'] = array (
   'label' => 'Entités',
   'displayAttrName' => true,
 
+  // triggers
+  'before_delete' => 'before_delete_entite',
+
   // LSform
   'LSform' => array (
     'ajaxSubmit' => 1,
diff --git a/local/conf/LSobjects/config.LSobjects.LSsupannOrg.php b/local/conf/LSobjects/config.LSobjects.LSsupannOrg.php
index 169d256..d7a8498 100644
--- a/local/conf/LSobjects/config.LSobjects.LSsupannOrg.php
+++ b/local/conf/LSobjects/config.LSobjects.LSsupannOrg.php
@@ -20,6 +20,15 @@
 
 ******************************************************************************/
 
+function before_delete_organization($object) {
+  $org = new LSsupannEntite();
+  if ($org->listChildren($object)) {
+      LSerror::addErrorCode('Cette organisation a des entités filles, vous ne pouvez pas la supprimer');
+      return false;
+  }
+  return $false;
+}
+
 $GLOBALS['LSobjects']['LSsupannOrg'] = array (
   'objectclass' => array(
     'organization',
@@ -33,6 +42,9 @@ $GLOBALS['LSobjects']['LSsupannOrg'] = array (
   'label' => 'Organisations',
   'displayAttrName' => true,
 
+  // triggers
+  'before_delete' => 'before_delete_organization',
+
   // LSform
   'LSform' => array (
     'ajaxSubmit' => 1,