diff --git a/include/wx/version.h b/include/wx/version.h
index bec1dea2f6..d1c3d604bf 100644
--- a/include/wx/version.h
+++ b/include/wx/version.h
@@ -35,10 +35,7 @@
  * version of wxWidgets being used. A single number with two decimal digits
  * for each component, e.g. 20601 for 2.6.1 */
 #ifndef wxABI_VERSION
-#define wxABI_VERSION ( \
-            wxMAJOR_VERSION * 10000 + \
-            wxMINOR_VERSION * 100 + \
-            wxRELEASE_NUMBER )
+#define wxABI_VERSION ( wxMAJOR_VERSION * 10000 + 9999 )
 #endif
 
 /*  helpers for wxVERSION_NUM_XXX */