diff --git a/common/recipes-support/rng-tools/rng-tools_%.bbappend b/common/recipes-support/rng-tools/rng-tools_%.bbappend
new file mode 100644
index 0000000..cda8e0b
--- /dev/null
+++ b/common/recipes-support/rng-tools/rng-tools_%.bbappend
@@ -0,0 +1,17 @@
+
+FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
+
+SRC_URI += "file://rngd.service"
+
+inherit systemd
+
+SYSTEMD_SERVICE_${PN} = "rngd.service"
+
+do_install_append() {
+    if ${@bb.utils.contains('DISTRO_FEATURES', 'systemd', 'true', 'false', d)}; then
+        install -d ${D}${systemd_unitdir}/system
+        install -m 644 ${WORKDIR}/rngd.service ${D}${systemd_unitdir}/system
+        sed -i -e 's,@SBINDIR@,${sbindir},g' ${D}${systemd_unitdir}/system/rngd.service
+    fi
+}
+