diff --git a/include/wx/defs.h b/include/wx/defs.h
index 6255413213..ecfb32f0ef 100644
--- a/include/wx/defs.h
+++ b/include/wx/defs.h
@@ -1557,7 +1557,7 @@ enum wxAlignment
 enum wxSizerFlagBits
 {
     /* for compatibility only, default now, don't use explicitly any more */
-#if WXWIN_COMPATIBILITY_2_6
+#if WXWIN_COMPATIBILITY_2_8
     wxADJUST_MINSIZE               = 0,
 #endif
     wxFIXED_MINSIZE                = 0x8000,