diff --git a/coin-or-OS.spec b/coin-or-OS.spec
index 7222b9f..2308ac2 100644
--- a/coin-or-OS.spec
+++ b/coin-or-OS.spec
@@ -3,6 +3,16 @@
 %global		with_asl	1
 %global		with_mpi	0
 
+# openblas available on these architectures.
+%if 0%{?fedora} && 0%{?fedora} > 26
+%{!?openblas_arches:%global openblas_arches x86_64 %{ix86} armv7hl %{power64} aarch64 s390x}
+%else
+%{!?openblas_arches:%global openblas_arches x86_64 %{ix86} armv7hl %{power64} aarch64}
+%endif
+%if 0%{?rhel}
+%{!?openblas_arches:%global openblas_arches x86_64 %{ix86} armv7hl %{power64} aarch64}
+%endif
+
 Name:		coin-or-%{module}
 Group:		Applications/Engineering
 Summary:	Optimization Services
@@ -13,7 +23,13 @@ URL:		http://projects.coin-or.org/%{module}
 Source0:	http://www.coin-or.org/download/pkgsource/%{module}/%{module}-%{version}.tgz
 BuildRequires:	atlas-devel
 BuildRequires:	bison
-BuildRequires:	blas-devel
+%ifarch %{openblas_arches}
+BuildRequires: openblas-devel
+BuildRequires: openblas-srpm-macros
+%else
+BuildRequires: blas-devel
+BuildRequires: lapack-devel
+%endif
 BuildRequires:	bzip2-devel
 BuildRequires:	gcc, gcc-c++
 BuildRequires:	coin-or-Bcp-devel
@@ -42,7 +58,6 @@ BuildRequires:	doxygen
 BuildRequires:	flex
 BuildRequires:	glpk-devel
 BuildRequires:	graphviz
-BuildRequires:	lapack-devel
 %if %{with_asl}
 BuildRequires:	mp-devel
 %endif
@@ -162,6 +177,7 @@ LD_LIBRARY_PATH=%{buildroot}%{_libdir} make test
 %changelog
 * Fri Feb 23 2018 Antonio Trande <sagitter@fedoraproject.org> - 2.10.1-15
 - Rebuild for Ipopt-3.12.9
+- Rebuild against openblas
 
 * Thu Feb 22 2018 Antonio Trande <sagitter@fedoraproject.org> - 2.10.1-14
 - Add gcc gcc-c++ BR