diff --git a/library/Class/Catalogue.php b/library/Class/Catalogue.php
index 549c2b817b04587cec19da21d630e8be5c89ba64..afe53bb4d2f1b525637e2e3108f608df84d896b6 100644
--- a/library/Class/Catalogue.php
+++ b/library/Class/Catalogue.php
@@ -382,9 +382,16 @@ class Class_Catalogue extends Storm_Model_Abstract {
 
 
 	public function deleteThesaurusInFacette($id_thesaurus) {
-		$sql = Zend_Registry::get('sql');
-		$sql->query('update notices set facettes = clean_spaces(replace(facettes,"H'.$id_thesaurus.'","")) '.
-								'where match(facettes) against("+H'.$id_thesaurus.'" in boolean mode)');
+		/*
+		 * Sites, articles and RSS records are first destroyed and then get their own selection of domains.
+		 * So therauri facettes must not be deleted. By the way, need to find a nicer implementation ...
+		 */
+		$query = 
+			'update notices set facettes = clean_spaces(replace(facettes,"H'.$id_thesaurus.'","")) '.
+			'where type_doc not in ('.implode(',', [Class_TypeDoc::ARTICLE, Class_TypeDoc::RSS, Class_TypeDoc::SITE]).') '.
+			'and match(facettes) against("+H'.$id_thesaurus.'" in boolean mode)';
+
+		Zend_Registry::get('sql')->query($query);
 	}