1 files changed, 6 insertions, 4 deletions

diff --git a/GateXor.h b/GateXor.h
index b70d552..7665b8c 100644
--- a/GateXor.h
+++ b/GateXor.h
@@ -3,16 +3,18 @@
 #include "Node.h"
 
 class GateXor : public Node {
+	using Node::Node;
+
 public:
 	GateXor() = default;
-	GateXor(const GateXor * prototype);
-	~GateXor() = default;
+	virtual ~GateXor() = default;
 	virtual GateXor * clone() const;
 
-private:
+public:
 	SignalLevel level();
 
-	using Node::Node;
+private:
+	GateXor(const GateXor * prototype);
 	constexpr static const char * type = "xor";
 	static GateXor instance;
 };