diff --git a/include/wx/platform.h b/include/wx/platform.h
index 122ffabef4..2ba090a0e1 100644
--- a/include/wx/platform.h
+++ b/include/wx/platform.h
@@ -466,6 +466,12 @@
 #        ifndef MAC_OS_X_VERSION_10_10
 #           define MAC_OS_X_VERSION_10_10 101000
 #        endif
+#        ifndef MAC_OS_X_VERSION_10_11
+#           define MAC_OS_X_VERSION_10_11 101100
+#        endif
+#        ifndef MAC_OS_X_VERSION_10_12
+#           define MAC_OS_X_VERSION_10_12 101200
+#        endif
 #    else
 #        error "only mach-o configurations are supported"
 #    endif