diff --git a/core/oksh.d/Makefile b/core/oksh.d/Makefile
new file mode 100644
index 0000000..87a0563
--- /dev/null
+++ b/core/oksh.d/Makefile
@@ -0,0 +1,33 @@
+package=oksh
+version=7.1
+pkgver=${version}_0
+description=Portable OpenBSD ksh
+conflict=
+homepage=http://github.com/ibara/oksh
+license=BSD-3-Clause
+replace=
+
+alternatives=sh:/usr/bin/sh:oksh
+shlib-provides=
+shlib-requires=libc.so
+
+include ../../Makefile
+
+SOURCES = \
+	${package}-${version}.tar.gz
+
+${package}-${version}.tar.gz:
+	${DOWNLOAD} https://github.com/ibara/oksh/archive/$@
+	${SHA256} "244ac5fed6e22b5cb0e817e9825f8fe755d5d648ed925940e77a3725f5b763a4"
+
+prepare: ${SOURCES}
+	tar -zxf ${package}-${version}.tar.gz
+	mv ${package}-${package}-${version} build
+
+root:
+	./configure --prefix=/usr
+	${MAKE}
+	${MAKE} DESTDIR=${root} install
+
+	ln -sf oksh "${root}/usr/bin/sh"
+