diff --git a/scripts/upgrade b/scripts/upgrade
index dd2177c..bf442ab 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -97,6 +97,9 @@ ynh_system_user_create --username=$app
 #=================================================
 ynh_script_progression --message="Upgrading Python virtualenv..." --weight=2
 
+env_path=$final_path/envs/prod
+mkdir -p $env_path
+
 pushd $final_path || ynh_die
 	chown -R $app:$app $final_path
 	sudo -u $app python3 -m venv $final_path/venv