diff --git a/srcpkgs/ocaml-zarith/template b/srcpkgs/ocaml-zarith/template
index 8c5485e6981..dfef566ae30 100644
--- a/srcpkgs/ocaml-zarith/template
+++ b/srcpkgs/ocaml-zarith/template
@@ -1,7 +1,7 @@
 # Template file for 'ocaml-zarith'
 pkgname=ocaml-zarith
-version=1.12
-revision=4
+version=1.13
+revision=1
 build_style=configure
 make_check_target="tests"
 hostmakedepends="perl"
@@ -12,13 +12,16 @@ maintainer="Leah Neukirchen <leah@vuxu.org>"
 license="LGPL-2.0-only,OCaml-LGPL-linking-exception"
 homepage="https://github.com/ocaml/zarith"
 distfiles="https://github.com/ocaml/zarith/archive/release-${version}.tar.gz"
-checksum=cc32563c3845c86d0f609c86d83bf8607ef12354863d31d3bffc0dacf1ed2881
+checksum=a5826d33fea0103ad6e66f92583d8e075fb77976de893ffdd73ada0409b3f83b
 nocross=yes
 disable_parallel_build=yes
 
 post_configure() {
 	sed -i 's/INSTALLDIR=/&$(DESTDIR)/' Makefile
 }
+pre_install() {
+	mkdir -p ${DESTDIR}/usr/lib/ocaml/stublibs
+}
 post_install() {
 	vcopy META usr/lib/ocaml/zarith
 }