diff --git a/include/wx/defs.h b/include/wx/defs.h
index 5e006edbf2..5dc4696a53 100644
--- a/include/wx/defs.h
+++ b/include/wx/defs.h
@@ -1813,14 +1813,15 @@ enum wxBorder
 
 /*
  * wxSpinButton flags.
- * Note that a wxSpinCtrl is sometimes defined as
- * a wxTextCtrl, and so the flags must be different
- * from wxTextCtrl's.
+ * Note that a wxSpinCtrl is sometimes defined as a wxTextCtrl, and so the
+ * flags shouldn't overlap with wxTextCtrl flags that can be used for a single
+ * line controls (currently we reuse wxTE_CHARWRAP and wxTE_RICH2 neither of
+ * which makes sense for them).
  */
 #define wxSP_HORIZONTAL       wxHORIZONTAL /*  4 */
 #define wxSP_VERTICAL         wxVERTICAL   /*  8 */
-#define wxSP_ARROW_KEYS       0x1000
-#define wxSP_WRAP             0x2000
+#define wxSP_ARROW_KEYS       0x4000
+#define wxSP_WRAP             0x8000
 
 /*
  * wxTabCtrl flags