diff --git a/interface/wx/grid.h b/interface/wx/grid.h
index 3d460ea68c..0df18e0c92 100644
--- a/interface/wx/grid.h
+++ b/interface/wx/grid.h
@@ -571,7 +571,7 @@ public:
        Note that if SetWindow() had been called with an object not deriving
        from wxControl, this method will return @NULL.
     */
-    wxControl* GetControl() const;
+    wxControl* GetControl();
 
     /**
        Set the wxControl that will be used by this cell editor for editing the
diff --git a/interface/wx/scrolwin.h b/interface/wx/scrolwin.h
index 6e5ca6b7a4..75bd9dc681 100644
--- a/interface/wx/scrolwin.h
+++ b/interface/wx/scrolwin.h
@@ -581,6 +581,7 @@ public:
     */
     virtual bool SendAutoScrollEvents(wxScrollWinEvent& event) const;
 
+protected:
     /**
         This method can be overridden in a derived class to prevent scrolling
         the child window into view automatically when it gets focus.
@@ -593,9 +594,8 @@ public:
 
         @since 3.1.3
      */
-    virtual bool ShouldScrollToChildOnFocus(wxWindow* child)
+    virtual bool ShouldScrollToChildOnFocus(wxWindow* child);
 
-protected:
     /**
         Function which must be overridden to implement the size available for
         the scroll target for the given size of the main window.
diff --git a/interface/wx/timer.h b/interface/wx/timer.h
index d0a884c7b7..d23f1b726e 100644
--- a/interface/wx/timer.h
+++ b/interface/wx/timer.h
@@ -208,7 +208,6 @@ public:
 class wxTimerEvent : public wxEvent
 {
 public:
-    wxTimerEvent();
     wxTimerEvent(wxTimer& timer);
 
     /**