diff --git a/medias_administrations.php b/medias_administrations.php
index ad091aae8f3acca641caad1fea4807ac9882fc98..16ecaecc3f43673b6850fe81e0c062fa79b32890 100644
--- a/medias_administrations.php
+++ b/medias_administrations.php
@@ -113,8 +113,8 @@ function medias_upgrade($nom_meta_base_version,$version_cible){
 	);
 
 	$maj['1.1.0'] = array(
-		array('sql_alter',"TABLE spip_documents_liens ADD id_objet (id_objet)"),
-		array('sql_alter',"TABLE spip_documents_liens ADD objet (objet)"),
+		array('sql_alter',"TABLE spip_documents_liens ADD INDEX id_objet (id_objet)"),
+		array('sql_alter',"TABLE spip_documents_liens ADD INDEX objet (objet)"),
 	);
 	$maj['1.1.1'] = array(
 		array('creer_base_types_doc'),
diff --git a/paquet.xml b/paquet.xml
index 9e425db416fdc0ade108dc012d61b6c92be176dd..446716a4c22e395d5bd054c218889b0ee19d6622 100644
--- a/paquet.xml
+++ b/paquet.xml
@@ -1,7 +1,7 @@
 <paquet
 	prefix="medias"
 	categorie="multimedia"
-	version="2.8.12"
+	version="2.8.13"
 	etat="stable"
 	compatibilite="[3.0.0;3.1.*]"
 	logo="prive/themes/spip/images/portfolio-32.png"