diff --git a/check_process b/check_process
index f34dfda..59d8db0 100644
--- a/check_process
+++ b/check_process
@@ -5,7 +5,7 @@
 		path="/path"	(PATH)
 		language="en"
 	; pre-install
-		sudo yunohost app fetchlist
+		sudo yunohost tools update --apps
 		sudo yunohost domain add baikaldomain.tld --admin-password $PASSWORD
 		sudo yunohost app install baikal -a "domain=baikaldomain.tld&path=/baikal&password=admin"
 	; Checks
diff --git a/scripts/install b/scripts/install
index 9b6d57f..0e575ca 100644
--- a/scripts/install
+++ b/scripts/install
@@ -38,7 +38,7 @@ test ! -e "$final_path" || ynh_die --message="This path already contains a folde
 ynh_webpath_register --app=$app --domain=$domain --path_url=$path_url
 
 agendav_app_check_installation() {
-	echo $(yunohost app list --installed -f "$1" | grep "id:")
+	echo $(yunohost app list | grep "id: $1")
 }
 
 # Check whether Baïkal or Radicale is installed
diff --git a/scripts/upgrade b/scripts/upgrade
index 8ae69e0..480ce6a 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -59,7 +59,7 @@ fi
 #=================================================
 
 agendav_app_check_installation() {
-	echo $(yunohost app list --installed -f "$1" | grep "id:")
+	echo $(yunohost app list | grep "id: $1")
 }
 
 # Check whether Baïkal or Radicale is installed