From 29f9aa8824d7c645f53096820a9f89c22e6c19a6 Mon Sep 17 00:00:00 2001
From: Evelin Aasna <evelin.aasna@fu-berlin.de>
Date: Mon, 4 Sep 2023 11:42:34 +0200
Subject: [PATCH] Missing include

---
 include/utilities/external_process.hpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/utilities/external_process.hpp b/include/utilities/external_process.hpp
index a14a1cd7..d7d82a1b 100644
--- a/include/utilities/external_process.hpp
+++ b/include/utilities/external_process.hpp
@@ -3,6 +3,7 @@
 #include <array>
 #include <cassert>
 #include <filesystem>
+#include <iostream>
 #include <memory>
 #include <ranges>
 #include <sstream>