From a93a7c5196de0113d91e24b849c0b6ba6ed9f298 Mon Sep 17 00:00:00 2001
From: Paul Gessinger <hello@paulgessinger.com>
Date: Wed, 6 Nov 2024 18:07:23 +0100
Subject: [PATCH] fix missing include

---
 Tests/UnitTests/Core/Utilities/HelpersTests.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Tests/UnitTests/Core/Utilities/HelpersTests.cpp b/Tests/UnitTests/Core/Utilities/HelpersTests.cpp
index f6252b82482..aa5e011669d 100644
--- a/Tests/UnitTests/Core/Utilities/HelpersTests.cpp
+++ b/Tests/UnitTests/Core/Utilities/HelpersTests.cpp
@@ -26,6 +26,7 @@
 #include <string>
 #include <tuple>
 #include <utility>
+#include <variant>
 #include <vector>
 
 using namespace Acts::VectorHelpers;