diff --git a/sys-cluster/Graph500/Graph500-1.2.ebuild b/sys-cluster/Graph500/Graph500-1.2.ebuild
index dae92c7d67..36601d979f 100644
--- a/sys-cluster/Graph500/Graph500-1.2.ebuild
+++ b/sys-cluster/Graph500/Graph500-1.2.ebuild
@@ -51,7 +51,10 @@ src_install() {
 	doins *.html
 	insinto "/usr/share/octave/site/m/${PN}"
 	doins -r octave/*
-	chrpath -d "${ED}/usr/bin/graph500_mpi_one_sided" || die
-	chrpath -d "${ED}/usr/bin/graph500_mpi_simple" || die
-	chrpath -d "${ED}/usr/bin/generator_test_mpi" || die
+
+	if use mpi ; then
+		chrpath -d "${ED}/usr/bin/graph500_mpi_one_sided" || die
+		chrpath -d "${ED}/usr/bin/graph500_mpi_simple" || die
+		chrpath -d "${ED}/usr/bin/generator_test_mpi" || die
+	fi
 }