--- nono/debugger/debugger_m88xx0.h	2026/04/29 17:05:24	1.1.1.9
+++ nono/debugger/debugger_m88xx0.h	2026/04/29 17:05:27	1.1.1.10
@@ -18,7 +18,7 @@ class DebuggerMD_m88xx0 : public Debugge
 {
 	using inherited = DebuggerMD;
  public:
-	DebuggerMD_m88xx0(Debugger *parent_);
+	explicit DebuggerMD_m88xx0(Debugger *parent_);
 	~DebuggerMD_m88xx0() override;
 
 	CPUState GetCPUState() const override { return (CPUState)cpu->GetState(); }