diff --git a/scripts/install b/scripts/install
index 5c4e67c..762ac18 100644
--- a/scripts/install
+++ b/scripts/install
@@ -47,6 +47,10 @@ seahub_port=$(ynh_find_port --port 8000)
 fileserver_port=$(ynh_find_port --port 8082)
 webdav_port=$(ynh_find_port --port 8080)
 
+if [ $fileserver_port -eq $webdav_port ]; then
+    webdav_port=$(ynh_find_port --port $((fileserver_port + 1)))
+fi
+
 # store config in yunohost
 ynh_script_progression --message="Storing installation settings..."
 ynh_app_setting_set --app $app --key server_name --value "$server_name"