diff --git a/math/hydrogen/Makefile b/math/hydrogen/Makefile
index c3c933a3ec59..f2dcbe6e5526 100644
--- a/math/hydrogen/Makefile
+++ b/math/hydrogen/Makefile
@@ -1,6 +1,7 @@
 PORTNAME=	hydrogen
 DISTVERSIONPREFIX=	v
 DISTVERSION=	1.5.1-29
+PORTREVISION=	1
 DISTVERSIONSUFFIX=	-gebfbc6418
 CATEGORIES=	math
 PKGNAMESUFFIX=	-linear-algebra
@@ -27,7 +28,7 @@ CMAKE_TESTING_OFF=	Hydrogen_ENABLE_TESTING # tests fail to configure, see https:
 OPTIONS_SINGLE=		MPI
 OPTIONS_SINGLE_MPI=	MPICH OPENMPI
 OPTIONS_DEFINE=		MPC
-OPTIONS_DEFAULT=	OPENMPI
+OPTIONS_DEFAULT=	MPICH # should be same as in misc/lbann
 
 MPICH_USES=		mpi:mpich