diff --git a/Source/Core/DolphinWX/Debugger/DSPRegisterView.h b/Source/Core/DolphinWX/Debugger/DSPRegisterView.h
index 246c5e8ed3..2d1354b5e9 100644
--- a/Source/Core/DolphinWX/Debugger/DSPRegisterView.h
+++ b/Source/Core/DolphinWX/Debugger/DSPRegisterView.h
@@ -33,7 +33,7 @@ private:
 class DSPRegisterView final : public wxGrid
 {
 public:
-  DSPRegisterView(wxWindow* parent, wxWindowID id = wxID_ANY);
+  explicit DSPRegisterView(wxWindow* parent, wxWindowID id = wxID_ANY);
   void Repopulate();
 
 private: