2 files changed, 4 insertions, 1 deletions
diff --git a/src/openvic-simulation/economy/GoodDefinition.cpp b/src/openvic-simulation/economy/GoodDefinition.cpp
index 97396f2..fcaae11 100644
--- a/src/openvic-simulation/economy/GoodDefinition.cpp
+++ b/src/openvic-simulation/economy/GoodDefinition.cpp
@@ -1,5 +1,7 @@
 #include "GoodDefinition.hpp"
 
+#include "openvic-simulation/modifier/Modifier.hpp"
+
 using namespace OpenVic;
 using namespace OpenVic::NodeTools;
 
diff --git a/src/openvic-simulation/economy/GoodDefinition.hpp b/src/openvic-simulation/economy/GoodDefinition.hpp
index bc231cb..823c1a3 100644
--- a/src/openvic-simulation/economy/GoodDefinition.hpp
+++ b/src/openvic-simulation/economy/GoodDefinition.hpp
@@ -1,6 +1,5 @@
 #pragma once
 
-#include "openvic-simulation/modifier/Modifier.hpp"
 #include "openvic-simulation/types/IdentifierRegistry.hpp"
 
 namespace OpenVic {
@@ -51,6 +50,8 @@ namespace OpenVic {
 		GoodDefinition(GoodDefinition&&) = default;
 	};
 
+	struct ModifierManager;
+
 	struct GoodDefinitionManager {
 	private:
 		IdentifierRegistry<GoodCategory> IDENTIFIER_REGISTRY_CUSTOM_PLURAL(good_category, good_categories);