diff --git a/python-numpy.changes b/python-numpy.changes
index 0dadf48..ef2d308 100644
--- a/python-numpy.changes
+++ b/python-numpy.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Fri Jan 19 16:17:22 CET 2018 - ro@suse.de
+
+- add s390 to the ifarch conditional to build without openblas 
+
 -------------------------------------------------------------------
 Wed Jan 10 09:04:47 UTC 2018 - adrian@suse.de
 
diff --git a/python-numpy.spec b/python-numpy.spec
index 4bbf976..de292ff 100644
--- a/python-numpy.spec
+++ b/python-numpy.spec
@@ -32,7 +32,7 @@ ExclusiveArch:  do_not_build
 
 %if "%flavor" == "standard"
  %bcond_with hpc
- %ifarch armv6l s390x
+ %ifarch armv6l s390 s390x
   %bcond_with openblas
  %else
   %bcond_without openblas