diff --git a/python-numpy.changes b/python-numpy.changes
index ef2d308..bc1d34c 100644
--- a/python-numpy.changes
+++ b/python-numpy.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Tue Feb  6 09:26:56 UTC 2018 - eich@suse.com
+
+- The HPC of python-numpy expects openBLAS. OpenBLAS is not availble
+  for sc390: disable buidling on s390 for HPC (bsc#1079513).
+
 -------------------------------------------------------------------
 Fri Jan 19 16:17:22 CET 2018 - ro@suse.de
 
diff --git a/python-numpy.spec b/python-numpy.spec
index de292ff..801e424 100644
--- a/python-numpy.spec
+++ b/python-numpy.spec
@@ -48,6 +48,10 @@ ExclusiveArch:  do_not_build
  %define c_f_ver 7
 %endif
 
+%ifarch s390
+%{?with_openblas:ExclusiveArch:  do_not_build}
+%endif
+
 %if %{without hpc}
 %define package_name %{pname}
 %define p_python_sitearch %python_sitearch