diff --git a/boost.changes b/boost.changes
index 107aa48..1b7ef65 100644
--- a/boost.changes
+++ b/boost.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Wed Feb  5 13:58:30 CET 2014 - ro@suse.de
+
+- enable build_mpi on s390/s390x 
+
 -------------------------------------------------------------------
 Tue Jan  7 11:02:00 UTC 2014 - schwab@suse.de
 
diff --git a/boost.spec b/boost.spec
index de9338b..57a909d 100644
--- a/boost.spec
+++ b/boost.spec
@@ -30,7 +30,7 @@
 # Just hardcode build_mpi to 1 as soon as openmpi builds on all
 # named architectures.
 
-%ifarch s390 s390x ia64 hppa
+%ifarch ia64 hppa
 %define build_mpi 0
 %else
 %define build_mpi 1