diff --git a/src/openvic-simulation/core/Hash.hpp b/src/openvic-simulation/core/Hash.hpp
index cd839663c..2224dead1 100644
--- a/src/openvic-simulation/core/Hash.hpp
+++ b/src/openvic-simulation/core/Hash.hpp
@@ -3,6 +3,7 @@
 #include <climits>
 #include <cstddef>
 #include <functional>
+#include <tuple>
 
 namespace OpenVic {
 	static constexpr std::size_t MURMUR3_SEED = 0x7F07C65;
diff --git a/src/openvic-simulation/misc/GameAction.hpp b/src/openvic-simulation/misc/GameAction.hpp
index bbd544a3e..101f55a51 100644
--- a/src/openvic-simulation/misc/GameAction.hpp
+++ b/src/openvic-simulation/misc/GameAction.hpp
@@ -2,6 +2,7 @@
 
 #include <cstddef>
 #include <cstdint>
+#include <tuple>
 #include <type_traits>
 #include <utility>
 #include <variant>
diff --git a/src/openvic-simulation/population/PopManager.hpp b/src/openvic-simulation/population/PopManager.hpp
index 38bbd2e2a..ed096b248 100644
--- a/src/openvic-simulation/population/PopManager.hpp
+++ b/src/openvic-simulation/population/PopManager.hpp
@@ -1,5 +1,7 @@
 #pragma once
 
+#include <tuple>
+
 #include "openvic-simulation/population/Culture.hpp"
 #include "openvic-simulation/population/Religion.hpp"
 #include "openvic-simulation/population/PopType.hpp"
diff --git a/src/openvic-simulation/types/IndexedFlatMap.hpp b/src/openvic-simulation/types/IndexedFlatMap.hpp
index fdaf41fd6..94dca9008 100644
--- a/src/openvic-simulation/types/IndexedFlatMap.hpp
+++ b/src/openvic-simulation/types/IndexedFlatMap.hpp
@@ -4,6 +4,7 @@
 #include <concepts>
 #include <cstddef>
 #include <iterator>
+#include <tuple>
 #include <utility>
 
 #include <type_safe/strong_typedef.hpp>
@@ -12,7 +13,6 @@
 
 #include "openvic-simulation/types/FixedVector.hpp"
 #include "openvic-simulation/core/template/Concepts.hpp"
-#include "openvic-simulation/utility/Getters.hpp"
 #include "openvic-simulation/core/portable/ForwardableSpan.hpp"
 #include "openvic-simulation/utility/Logger.hpp"