diff --git a/scripts/upgrade b/scripts/upgrade
index 0eda0ce..fcca5f1 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -101,7 +101,7 @@ ynh_script_progression --message="Upgrading dependencies..." --time --weight=1
 ynh_exec_warn_less ynh_install_app_dependencies $pkg_dependencies
 
 # Install Nodejs
-ynh_exec_warn_less ynh_install_nodejs --nodejs_version=$nodejs_version
+ynh_exec_warn_less ynh_install_nodejs --nodejs_version=$NODEJS_VERSION
 
 # Install Yarn
 ynh_install_extra_app_dependencies --repo="deb https://dl.yarnpkg.com/debian/ stable main" --package="yarn" --key="https://dl.yarnpkg.com/debian/pubkey.gpg"