diff --git a/wxPython/src/controls.i b/wxPython/src/controls.i
index 2fd172ddd6..81806eaf6c 100644
--- a/wxPython/src/controls.i
+++ b/wxPython/src/controls.i
@@ -323,7 +323,7 @@ public:
                const wxPoint& pos = wxDefaultPosition,
                const wxSize& size = wxDefaultSize,
                long style = 0,
-               const wxValidator& val = wxDefaultValidator,
+               const wxValidator& validator = wxDefaultValidator,
                const wxString& name = wxPyCheckBoxNameStr);
     %name(wxPreCheckBox)wxCheckBox();
 
@@ -331,7 +331,7 @@ public:
                const wxPoint& pos = wxDefaultPosition,
                const wxSize& size = wxDefaultSize,
                long style = 0,
-               const wxValidator& val = wxDefaultValidator,
+               const wxValidator& validator = wxDefaultValidator,
                const wxString& name = wxPyCheckBoxNameStr);
 
     %pragma(python) addtomethod = "__init__:self._setOORInfo(self)"