diff --git a/include/wx/defs.h b/include/wx/defs.h
index 6bb7da9ed4..75191a57e5 100644
--- a/include/wx/defs.h
+++ b/include/wx/defs.h
@@ -1695,6 +1695,16 @@ enum wxBackgroundStyle
   wxBG_STYLE_CUSTOM
 };
 
+/*
+ * Key types used by (old style) lists and hashes.
+ */
+enum wxKeyType
+{
+    wxKEY_NONE,
+    wxKEY_INTEGER,
+    wxKEY_STRING
+};
+
 /*  ---------------------------------------------------------------------------- */
 /*  standard IDs */
 /*  ---------------------------------------------------------------------------- */
diff --git a/include/wx/list.h b/include/wx/list.h
index 6324dd1232..7e189ea848 100644
--- a/include/wx/list.h
+++ b/include/wx/list.h
@@ -60,22 +60,6 @@ typedef wxObjectListNode wxNode;
 //
 typedef int (* LINKAGEMODE wxListIterateFunction)(void *current);
 
-// ----------------------------------------------------------------------------
-// constants
-// ----------------------------------------------------------------------------
-
-#if !defined(wxENUM_KEY_TYPE_DEFINED)
-#define wxENUM_KEY_TYPE_DEFINED
-
-enum wxKeyType
-{
-    wxKEY_NONE,
-    wxKEY_INTEGER,
-    wxKEY_STRING
-};
-
-#endif
-
 #if wxUSE_STL
 
 #define wxLIST_COMPATIBILITY