diff --git a/scripts/install b/scripts/install
index 3b5941b..a1abb75 100644
--- a/scripts/install
+++ b/scripts/install
@@ -13,7 +13,7 @@ source ./_common.sh
 # Retrieve arguments
 domain=$YNH_APP_ARG_DOMAIN
 path=$YNH_APP_ARG_PATH
-port=$YNH_APP_ARG_PORT
+port=$(ynh_find_port $YNH_APP_ARG_PORT)
 admin=$YNH_APP_ARG_ADMIN
 is_public=$YNH_APP_ARG_IS_PUBLIC