diff --git a/recipes-core/busybox/busybox_sysmocom_1.21.1.inc b/recipes-core/busybox/busybox_sysmocom_1.21.1.inc
new file mode 100644
index 0000000..130fab6
--- /dev/null
+++ b/recipes-core/busybox/busybox_sysmocom_1.21.1.inc
@@ -0,0 +1,2 @@
+SRC_URI += "file://ifplugd-use-a-larger-netlink-buffer.patch"
+PRINC := "${@int(PRINC) + 1}"
diff --git a/recipes-core/busybox/busybox_sysmocom_systemd.inc b/recipes-core/busybox/busybox_sysmocom_systemd.inc
index 19739f5..58b2682 100644
--- a/recipes-core/busybox/busybox_sysmocom_systemd.inc
+++ b/recipes-core/busybox/busybox_sysmocom_systemd.inc
@@ -2,5 +2,3 @@
 SYSMOCOM_D := "${@os.path.dirname(bb.data.getVar('FILE', d, True))}"
 FILESEXTRAPATHS_prepend := "${SYSMOCOM}/${PN}-systemd:${SYSMOCOM_D}/${PN}:"
 PRINC := "${@int(PRINC) + 3}"
-
-SRC_URI += "file://ifplugd-use-a-larger-netlink-buffer.patch"
diff --git a/yocto-dora/busybox_1.21.1.bbappend b/yocto-dora/busybox_1.21.1.bbappend
index 641aeb3..0c0790f 100644
--- a/yocto-dora/busybox_1.21.1.bbappend
+++ b/yocto-dora/busybox_1.21.1.bbappend
@@ -2,3 +2,4 @@
 SYSMOCOM_ORIG_PV := "${PV}"
 require recipes-core/busybox/${PN}_sysmocom.inc
 require recipes-core/busybox/${PN}_sysmocom_systemd.inc
+require recipes-core/busybox/${PN}_sysmocom_1.21.1.inc