diff --git a/recipes-support/rng-tools/rng-tools_%.bbappend b/recipes-support/rng-tools/rng-tools_%.bbappend
new file mode 100644
index 0000000..16add36
--- /dev/null
+++ b/recipes-support/rng-tools/rng-tools_%.bbappend
@@ -0,0 +1,13 @@
+FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
+SRC_URI += "file://10-nice.conf"
+
+inherit systemd
+
+FILES_${PN} += "${systemd_unitdir}/system/rngd.service.d"
+
+do_install_append() {
+    if ${@bb.utils.contains('DISTRO_FEATURES', 'systemd', 'true', 'false', d)}; then
+        install -d ${D}${systemd_unitdir}/system/rngd.service.d
+        install -m 644 ${WORKDIR}/10-nice.conf ${D}${systemd_unitdir}/system/rngd.service.d
+    fi
+}