diff --git a/sys-cluster/openmpi/openmpi-2.1.2.ebuild b/sys-cluster/openmpi/openmpi-2.1.2.ebuild
index d27771af895..0b789e36728 100644
--- a/sys-cluster/openmpi/openmpi-2.1.2.ebuild
+++ b/sys-cluster/openmpi/openmpi-2.1.2.ebuild
@@ -5,7 +5,7 @@ EAPI=6
 
 FORTRAN_NEEDED=fortran
 
-inherit cuda flag-o-matic fortran-2 java-pkg-opt-2 toolchain-funcs versionator multilib-minimal
+inherit autotools cuda flag-o-matic fortran-2 java-pkg-opt-2 toolchain-funcs versionator multilib-minimal
 
 MY_P=${P/-mpi}
 S=${WORKDIR}/${MY_P}
@@ -71,6 +71,9 @@ MULTILIB_WRAPPED_HEADERS=(
 	/usr/include/mpi.h
 	/usr/include/openmpi/ompi/mpi/java/mpiJava.h
 )
+PATCHES=(
+	"${FILESDIR}"/openmpi-uniq.patch
+)
 
 pkg_setup() {
 	fortran-2_pkg_setup
@@ -92,6 +95,8 @@ src_prepare() {
 		echo 'oob_tcp_listen_mode = listen_thread' \
 			>> opal/etc/openmpi-mca-params.conf || die
 	fi
+
+	eautoreconf
 }
 
 multilib_src_configure() {