diff --git a/Source/Flow/Public/AddOns/FlowNodeAddOn.h b/Source/Flow/Public/AddOns/FlowNodeAddOn.h
index aabea5c4d..e2d2931be 100644
--- a/Source/Flow/Public/AddOns/FlowNodeAddOn.h
+++ b/Source/Flow/Public/AddOns/FlowNodeAddOn.h
@@ -41,7 +41,7 @@ class UFlowNodeAddOn : public UFlowNodeBase
 	// UFlowNodeBase
 
 #if WITH_EDITOR
-	virtual UEdGraphNode* GetGraphNode() const override;
+	FLOW_API virtual UEdGraphNode* GetGraphNode() const override;
 #endif
 
 	// AddOns may opt in to be eligible for a given parent
diff --git a/Source/FlowEditor/Public/Nodes/FlowNodeBlueprintFactory.h b/Source/FlowEditor/Public/Nodes/FlowNodeBlueprintFactory.h
index 9ce489369..e3752525e 100644
--- a/Source/FlowEditor/Public/Nodes/FlowNodeBlueprintFactory.h
+++ b/Source/FlowEditor/Public/Nodes/FlowNodeBlueprintFactory.h
@@ -19,9 +19,9 @@ class UFlowNodeBaseBlueprintFactory : public UFactory
 	TSubclassOf<class UFlowNodeBase> ParentClass;
 
 	// UFactory
-	virtual bool ConfigureProperties() override;
-	virtual UObject* FactoryCreateNew(UClass* Class, UObject* InParent, FName Name, EObjectFlags Flags, UObject* Context, FFeedbackContext* Warn, FName CallingContext) override;
-	virtual UObject* FactoryCreateNew(UClass* Class, UObject* InParent, FName Name, EObjectFlags Flags, UObject* Context, FFeedbackContext* Warn) override;
+	FLOWEDITOR_API virtual bool ConfigureProperties() override;
+	FLOWEDITOR_API virtual UObject* FactoryCreateNew(UClass* Class, UObject* InParent, FName Name, EObjectFlags Flags, UObject* Context, FFeedbackContext* Warn, FName CallingContext) override;
+	FLOWEDITOR_API virtual UObject* FactoryCreateNew(UClass* Class, UObject* InParent, FName Name, EObjectFlags Flags, UObject* Context, FFeedbackContext* Warn) override;
 
 	void ShowCannotCreateBlueprintDialog();
 	// --