diff --git a/macros.openblas-srpm b/macros.openblas-srpm
index 1da4584..c4f9fdc 100644
--- a/macros.openblas-srpm
+++ b/macros.openblas-srpm
@@ -1,2 +1,2 @@
 # Architectures that OpenBLAS supports
-%openblas_arches x86_64 %{ix86} armv7hl %{power64} aarch64
+%openblas_arches x86_64 %{ix86} armv7hl %{power64} aarch64 s390x
diff --git a/openblas-srpm-macros.spec b/openblas-srpm-macros.spec
index ea8ad34..5733aca 100644
--- a/openblas-srpm-macros.spec
+++ b/openblas-srpm-macros.spec
@@ -1,5 +1,5 @@
 Name:           openblas-srpm-macros
-Version:        1
+Version:        2
 Release:        1%{?dist}
 Summary:        OpenBLAS architecture macros
 Group:          Development/Libraries
@@ -28,5 +28,8 @@ install -m0644 %SOURCE0 %{buildroot}%{macrosdir}/macros.openblas-srpm
 
 
 %changelog
+* Mon May 29 2017 Dan Horák <dan[at]danny.cz> - 2-1
+- add s390x to supported arches
+
 * Mon Mar 20 2017 Orion Poplawski <orion@cora.nwra.com> - 1-1
 - Initial package