diff --git a/scripts/install b/scripts/install
index 5c4e67c..7035c71 100644
--- a/scripts/install
+++ b/scripts/install
@@ -44,8 +44,8 @@ test ! -e "$final_path" || ynh_die --message "This path already contains a folde
 # Find available ports
 ynh_script_progression --message="Finding available ports..."
 seahub_port=$(ynh_find_port --port 8000)
-fileserver_port=$(ynh_find_port --port 8082)
-webdav_port=$(ynh_find_port --port 8080)
+fileserver_port=$(ynh_find_port --port $(expr $seahub_port + 1))
+webdav_port=$(ynh_find_port --port $(expr $fileserver_port + 1))
 
 # store config in yunohost
 ynh_script_progression --message="Storing installation settings..."