--- include/gpb_version.hrl.in.orig	2015-07-14 10:14:25 UTC
+++ include/gpb_version.hrl.in
@@ -5,6 +5,6 @@
 %% at build-time, see the rebar.config or the Makefile
 %% NB: The build/mk_version_hrl depends on the exact wording
 
--define(gpb_version, "@vsn@").
+-define(gpb_version, "%%PORTVERSION%%").
 
 -endif. %% gpb_version_hrl