diff --git a/include/wx/defs.h b/include/wx/defs.h
index 32572213e6..aef702f397 100644
--- a/include/wx/defs.h
+++ b/include/wx/defs.h
@@ -1418,17 +1418,14 @@ enum wxBorder
 /*  Old names for compatibility */
 #define wxRA_HORIZONTAL     wxHORIZONTAL
 #define wxRA_VERTICAL       wxVERTICAL
-
-/*  Use alternative object for single control */
-
-#define wxRA_USE_SUBSTITUTE 0x0010
+#define wxRA_USE_CHECKBOX   0x0010 /* alternative native subcontrols (wxPalmOS) */
 
 /*
  * wxRadioButton style flag
  */
 #define wxRB_GROUP          0x0004
 #define wxRB_SINGLE         0x0008
-#define wxRB_USE_SUBSTITUTE 0x0010
+#define wxRB_USE_CHECKBOX   0x0010 /* alternative native control (wxPalmOS) */
 
 /*
  * wxSlider flags
diff --git a/src/palmos/radiobut.cpp b/src/palmos/radiobut.cpp
index 3a344102aa..e189985762 100644
--- a/src/palmos/radiobut.cpp
+++ b/src/palmos/radiobut.cpp
@@ -115,7 +115,7 @@ bool wxRadioButton::Create(wxWindow *parent,
                            const wxString& name)
 {
     // replace native push button with native checkbox
-    if ( style & wxRB_USE_SUBSTITUTE )
+    if ( style & wxRB_USE_CHECKBOX )
         m_radioStyle = checkboxCtl;
 
     if(!wxControl::Create(parent, id, pos, size, style, validator, name))