diff --git a/poky/meta/recipes-core/systemd/systemd/0025-Handle-__cpu_mask-usage.patch b/poky/meta/recipes-core/systemd/systemd/0025-Handle-__cpu_mask-usage.patch
new file mode 100644
index 0000000..1cc3985
--- /dev/null
+++ b/poky/meta/recipes-core/systemd/systemd/0025-Handle-__cpu_mask-usage.patch
@@ -0,0 +1,60 @@
+From bbda4a48a34662393117fc677c3a678d4ce4c2ec Mon Sep 17 00:00:00 2001
+From: Scott Murray <scott.murray@konsulko.com>
+Date: Fri, 13 Sep 2019 19:26:27 -0400
+Subject: [PATCH 25/26] Handle __cpu_mask usage
+
+Fixes errors:
+
+src/test/test-cpu-set-util.c:18:54: error: '__cpu_mask' undeclared (first use in this function)
+src/test/test-sizeof.c:73:14: error: '__cpu_mask' undeclared (first use in this function)
+
+__cpu_mask is an internal type of glibc's cpu_set implementation, not
+part of the POSIX definition, which is problematic when building with
+musl, which does not define a matching type.  From inspection of musl's
+sched.h, however, it is clear that the corresponding type would be
+unsigned long, which does match glibc's actual __CPU_MASK_TYPE.  So,
+add a typedef to cpu-set-util.h defining __cpu_mask appropriately.
+
+Upstream-Status: Inappropriate [musl specific]
+
+Signed-off-by: Scott Murray <scott.murray@konsulko.com>
+---
+ src/shared/cpu-set-util.h | 2 ++
+ src/test/test-sizeof.c    | 2 +-
+ 2 files changed, 3 insertions(+), 1 deletion(-)
+
+diff --git a/src/shared/cpu-set-util.h b/src/shared/cpu-set-util.h
+index 3c63a58826..4c2d4347fc 100644
+--- a/src/shared/cpu-set-util.h
++++ b/src/shared/cpu-set-util.h
+@@ -6,6 +6,8 @@
+ #include "macro.h"
+ #include "missing_syscall.h"
+ 
++typedef unsigned long __cpu_mask;
++
+ /* This wraps the libc interface with a variable to keep the allocated size. */
+ typedef struct CPUSet {
+         cpu_set_t *set;
+diff --git a/src/test/test-sizeof.c b/src/test/test-sizeof.c
+index e1a59d408c..c269ea6e8c 100644
+--- a/src/test/test-sizeof.c
++++ b/src/test/test-sizeof.c
+@@ -1,6 +1,5 @@
+ /* SPDX-License-Identifier: LGPL-2.1-or-later */
+ 
+-#include <sched.h>
+ #include <stdio.h>
+ #include <string.h>
+ #include <sys/types.h>
+@@ -10,6 +9,7 @@
+ #include <float.h>
+ 
+ #include "time-util.h"
++#include "cpu-set-util.h"
+ 
+ /* Print information about various types. Useful when diagnosing
+  * gcc diagnostics on an unfamiliar architecture. */
+-- 
+2.27.0
+