--- nono/vm/keyboard.h	2026/04/29 17:04:35	1.1.1.4
+++ nono/vm/keyboard.h	2026/04/29 17:04:45	1.1.1.5
@@ -14,7 +14,7 @@ class Keyboard : public Device
  protected:
 	Keyboard();
  public:
-	~Keyboard() override;
+	virtual ~Keyboard() override;
 
 	// キーを押した
 	virtual void MakeKey(uint) = 0;