diff --git a/meson.build b/meson.build
index d21fc8f61..d9fead863 100644
--- a/meson.build
+++ b/meson.build
@@ -336,16 +336,16 @@ webrtc_dep = dependency('webrtc-audio-processing',
 summary({'WebRTC Echo Canceling': webrtc_dep.found()}, bool_yn: true, section: 'Misc dependencies')
 cdata.set('HAVE_WEBRTC', webrtc_dep.found())
 
-# On FreeBSD, epoll-shim library is required for eventfd() and timerfd()
-epoll_shim_dep = (build_machine.system() == 'freebsd'
+# On FreeBSD and MidnightBSD, epoll-shim library is required for eventfd() and timerfd()
+epoll_shim_dep = (build_machine.system() == 'freebsd' or build_machine.system() == 'midnightbsd'
     ? dependency('epoll-shim', required: true)
     : dependency('', required: false))
 
-libinotify_dep = (build_machine.system() == 'freebsd'
+libinotify_dep = (build_machine.system() == 'freebsd' or build_machine.system() == 'midnightbsd'
     ? dependency('libinotify', required: true)
     : dependency('', required: false))
 
-# On FreeBSD, libintl library is required for gettext
+# On FreeBSD and MidnightBSD, libintl library is required for gettext
 libintl_dep = cc.find_library('intl', required: false)
 if not libintl_dep.found()
     libintl_dep = dependency('intl', required: false)
@@ -356,8 +356,8 @@ need_alsa = get_option('pipewire-alsa').enabled() or 'media-session' in get_opti
 alsa_dep = dependency('alsa', version : '>=1.1.7', required: need_alsa)
 summary({'pipewire-alsa': alsa_dep.found()}, bool_yn: true)
 
-if build_machine.system() == 'freebsd'
-# On FreeBSD the OpenSSL library may come from base or a package.
+if build_machine.system() == 'freebsd' or build_machine.system() == 'midnightbsd'
+# On FreeBSD and MidnightBSD the OpenSSL library may come from base or a package.
 # Check for a package first and fallback to the base library if we can't find it via pkgconfig
     openssl_lib = dependency('openssl', required: false)
     if not openssl_lib.found()
diff --git a/pipewire-alsa/alsa-plugins/pcm_pipewire.c b/pipewire-alsa/alsa-plugins/pcm_pipewire.c
index 16940b1fc..9d6a9dc47 100644
--- a/pipewire-alsa/alsa-plugins/pcm_pipewire.c
+++ b/pipewire-alsa/alsa-plugins/pcm_pipewire.c
@@ -25,7 +25,7 @@
 #define __USE_GNU
 
 #include <limits.h>
-#ifndef __FreeBSD__
+#if !defined(__FreeBSD__) && !defined(__MidnightBSD__)
 #include <byteswap.h>
 #endif
 #include <sys/shm.h>
diff --git a/pipewire-v4l2/src/pipewire-v4l2.c b/pipewire-v4l2/src/pipewire-v4l2.c
index 47e1721c2..d2e13dbf7 100644
--- a/pipewire-v4l2/src/pipewire-v4l2.c
+++ b/pipewire-v4l2/src/pipewire-v4l2.c
@@ -1756,7 +1756,7 @@ static int v4l2_ioctl(int fd, unsigned long int request, void *arg)
 	if ((file = find_file(fd)) == NULL)
 		return globals.old_fops.ioctl(fd, request, arg);
 
-#ifdef __FreeBSD__
+#if defined(__FreeBSD__) || defined(__MidnightBSD__)
 	if (arg == NULL && (request & IOC_DIRMASK != IOC_VOID)) {
 #else
 	if (arg == NULL && (_IOC_DIR(request) & (_IOC_WRITE | _IOC_READ))) {
diff --git a/spa/include/spa/param/audio/layout.h b/spa/include/spa/param/audio/layout.h
index 1868144ef..66154bf62 100644
--- a/spa/include/spa/param/audio/layout.h
+++ b/spa/include/spa/param/audio/layout.h
@@ -29,7 +29,7 @@
 extern "C" {
 #endif
 
-#ifndef __FreeBSD__
+#if !defined(__FreeBSD__) && !defined(__MidnightBSD__)
 #include <endian.h>
 #endif
 
diff --git a/spa/include/spa/param/audio/raw.h b/spa/include/spa/param/audio/raw.h
index 47fe90dfa..a34915c42 100644
--- a/spa/include/spa/param/audio/raw.h
+++ b/spa/include/spa/param/audio/raw.h
@@ -31,7 +31,7 @@ extern "C" {
 
 #include <stdint.h>
 
-#ifndef __FreeBSD__
+#if !defined(__FreeBSD__) && !defined(__MidnightBSD__)
 #include <endian.h>
 #endif
 
diff --git a/spa/plugins/audioconvert/fmt-ops.h b/spa/plugins/audioconvert/fmt-ops.h
index 3f31e1a47..3016c6752 100644
--- a/spa/plugins/audioconvert/fmt-ops.h
+++ b/spa/plugins/audioconvert/fmt-ops.h
@@ -23,7 +23,7 @@
  */
 
 #include <math.h>
-#ifdef __FreeBSD__
+#if defined(__FreeBSD__) || defined(__MidnightBSD__)
 #include <sys/endian.h>
 #define bswap_16 bswap16
 #define bswap_32 bswap32
diff --git a/spa/plugins/support/cpu.c b/spa/plugins/support/cpu.c
index 01cff4854..67440af16 100644
--- a/spa/plugins/support/cpu.c
+++ b/spa/plugins/support/cpu.c
@@ -30,7 +30,7 @@
 #include <sched.h>
 #include <fcntl.h>
 
-#ifdef __FreeBSD__
+#if defined(__FreeBSD__) || defined(__MidnightBSD__)
 #include <sys/sysctl.h>
 #endif
 
diff --git a/spa/plugins/support/logger.c b/spa/plugins/support/logger.c
index 4d308fa90..3b854c65e 100644
--- a/spa/plugins/support/logger.c
+++ b/spa/plugins/support/logger.c
@@ -42,7 +42,7 @@
 
 #include "log-patterns.h"
 
-#ifdef __FreeBSD__
+#if defined(__FreeBSD__) || defined(__MidnightBSD__)
 #define CLOCK_MONOTONIC_RAW CLOCK_MONOTONIC
 #endif
 
diff --git a/spa/plugins/vulkan/vulkan-utils.c b/spa/plugins/vulkan/vulkan-utils.c
index ff9a51eb3..aa669bc8e 100644
--- a/spa/plugins/vulkan/vulkan-utils.c
+++ b/spa/plugins/vulkan/vulkan-utils.c
@@ -6,7 +6,7 @@
 #include <sys/mman.h>
 #include <fcntl.h>
 #include <string.h>
-#ifndef __FreeBSD__
+#if defined(__FreeBSD__) || defined(__MidnightBSD__)
 #include <alloca.h>
 #endif
 #include <errno.h>
diff --git a/spa/tests/stress-ringbuffer.c b/spa/tests/stress-ringbuffer.c
index 2c3f38af2..6a7e98fb5 100644
--- a/spa/tests/stress-ringbuffer.c
+++ b/spa/tests/stress-ringbuffer.c
@@ -11,10 +11,10 @@
 #define ARRAY_SIZE 63
 #define MAX_VALUE 0x10000
 
-#ifdef __FreeBSD__
+#if defined(__FreeBSD__) || defined(__MidnightBSD__)
 #include <sys/param.h>
 #if (__FreeBSD_version >= 1400000 && __FreeBSD_version < 1400043) \
-    || (__FreeBSD_version < 1300523)
+    || (__FreeBSD_version < 1300523) || defined(__MidnightBSD__)
 static int sched_getcpu(void) { return -1; };
 #endif
 #endif
diff --git a/src/modules/module-protocol-native.c b/src/modules/module-protocol-native.c
index 556ee14c0..44a642534 100644
--- a/src/modules/module-protocol-native.c
+++ b/src/modules/module-protocol-native.c
@@ -38,7 +38,7 @@
 #ifdef HAVE_PWD_H
 #include <pwd.h>
 #endif
-#if defined(__FreeBSD__)
+#if defined(__FreeBSD__) || defined(__MidnightBSD__)
 #include <sys/ucred.h>
 #endif
 
@@ -534,7 +534,7 @@ static struct client_data *client_new(struct server *s, int fd)
 	struct pw_impl_client *client;
 	struct pw_protocol *protocol = s->this.protocol;
 	socklen_t len;
-#if defined(__FreeBSD__)
+#if defined(__FreeBSD__) || defined(__MidnightBSD__)
 	struct xucred xucred;
 #else
 	struct ucred ucred;
@@ -583,7 +583,7 @@ static struct client_data *client_new(struct server *s, int fd)
 					(int)len, buffer);
 		}
 	}
-#elif defined(__FreeBSD__)
+#elif defined(__FreeBSD__) || defined(__MidnightBSD__)
 	len = sizeof(xucred);
 	if (getsockopt(fd, 0, LOCAL_PEERCRED, &xucred, &len) < 0) {
 		pw_log_warn("server %p: no peercred: %m", s);
diff --git a/src/modules/module-protocol-pulse/utils.c b/src/modules/module-protocol-pulse/utils.c
index cd96a8dfb..1c9bc1c5f 100644
--- a/src/modules/module-protocol-pulse/utils.c
+++ b/src/modules/module-protocol-pulse/utils.c
@@ -152,7 +152,7 @@ pid_t get_client_pid(struct client *client, int client_fd)
 		pw_log_warn("client %p: no peercred: %m", client);
 	} else
 		return ucred.pid;
-#elif defined(__FreeBSD__)
+#elif defined(__FreeBSD__) || defined(__MidnightBSD__)
 	struct xucred xucred;
 	len = sizeof(xucred);
 	if (getsockopt(client_fd, 0, LOCAL_PEERCRED, &xucred, &len) < 0) {
diff --git a/src/modules/module-rt.c b/src/modules/module-rt.c
index cc87c5f67..869d5c08e 100644
--- a/src/modules/module-rt.c
+++ b/src/modules/module-rt.c
@@ -52,7 +52,7 @@
 #include <stdio.h>
 #include <errno.h>
 #include <sys/stat.h>
-#ifdef __FreeBSD__
+#if defined(__FreeBSD__) || defined(__MidnightBSD__)
 #include <sys/thr.h>
 #endif
 #include <fcntl.h>
@@ -205,7 +205,7 @@ static pid_t _gettid(void)
 	return (pid_t) gettid();
 #elif defined(__linux__)
 	return syscall(SYS_gettid);
-#elif defined(__FreeBSD__)
+#elif defined(__FreeBSD__) || defined(__MidnightBSD__)
 	long pid;
 	thr_self(&pid);
 	return (pid_t)pid;
diff --git a/src/pipewire/conf.c b/src/pipewire/conf.c
index 4e6fc2ca0..a70b8aa35 100644
--- a/src/pipewire/conf.c
+++ b/src/pipewire/conf.c
@@ -38,7 +38,7 @@
 #ifdef HAVE_PWD_H
 #include <pwd.h>
 #endif
-#ifdef __FreeBSD__
+#if defined(__FreeBSD__) || defined(__MidnightBSD__)
 #define O_PATH 0
 #endif
 
diff --git a/src/pipewire/mem.c b/src/pipewire/mem.c
index 42ac7c104..361ee88a2 100644
--- a/src/pipewire/mem.c
+++ b/src/pipewire/mem.c
@@ -44,7 +44,7 @@
 PW_LOG_TOPIC_EXTERN(log_mem);
 #define PW_LOG_TOPIC_DEFAULT log_mem
 
-#if !defined(__FreeBSD__) && !defined(HAVE_MEMFD_CREATE)
+#if !defined(__FreeBSD__) && !defined(__MidnightBSD__) && !defined(HAVE_MEMFD_CREATE)
 /*
  * No glibc wrappers exist for memfd_create(2), so provide our own.
  *
@@ -61,7 +61,7 @@ static inline int memfd_create(const char *name, unsigned int flags)
 #define HAVE_MEMFD_CREATE 1
 #endif
 
-#ifdef __FreeBSD__
+#if defined(__FreeBSD__) || defined(__MidnightBSD__)
 #define MAP_LOCKED 0
 #endif
 
@@ -491,7 +491,7 @@ struct pw_memblock * pw_mempool_alloc(struct pw_mempool *pool, enum pw_memblock_
 		pw_log_error("%p: Failed to create memfd: %m", pool);
 		goto error_free;
 	}
-#elif defined(__FreeBSD__)
+#elif defined(__FreeBSD__) || defined(__MidnightBSD__)
 	b->this.fd = shm_open(SHM_ANON, O_CREAT | O_RDWR | O_CLOEXEC, 0);
 	if (b->this.fd == -1) {
 		res = -errno;
diff --git a/src/pipewire/meson.build b/src/pipewire/meson.build
index f96a022bc..f594c55f3 100644
--- a/src/pipewire/meson.build
+++ b/src/pipewire/meson.build
@@ -94,7 +94,7 @@ libpipewire_c_args = [
   '-DOLD_MEDIA_SESSION_WORKAROUND=1'
 ]
 
-if build_machine.system() != 'freebsd'
+if build_machine.system() != 'freebsd' and build_machine.system() != 'midnightbsd'
   libpipewire_c_args += [
     '-D_POSIX_C_SOURCE'
   ]
diff --git a/src/pipewire/pipewire.c b/src/pipewire/pipewire.c
index f0edb1867..4561ba7bd 100644
--- a/src/pipewire/pipewire.c
+++ b/src/pipewire/pipewire.c
@@ -27,7 +27,7 @@
 #include <unistd.h>
 #include <limits.h>
 #include <stdio.h>
-#ifndef __FreeBSD__
+#if !defined(__FreeBSD__) && !defined(__MidnightBSD__)
 #include <sys/prctl.h>
 #endif
 #include <pwd.h>
@@ -746,7 +746,7 @@ static void init_prgname(void)
 	static char name[PATH_MAX];
 
 	spa_memzero(name, sizeof(name));
-#if defined(__linux__) || defined(__FreeBSD_kernel__)
+#if defined(__linux__) || defined(__FreeBSD_kernel__) || defined(__MidnightBSD_kernel__)
 	{
 		if (readlink("/proc/self/exe", name, sizeof(name)-1) > 0) {
 			prgname = strrchr(name, '/') + 1;
@@ -754,7 +754,7 @@ static void init_prgname(void)
 		}
 	}
 #endif
-#if defined __FreeBSD__
+#if defined __FreeBSD__ || defined(__MidnightBSD__)
 	{
 		ssize_t len;
 
@@ -764,7 +764,7 @@ static void init_prgname(void)
 		}
 	}
 #endif
-#ifndef __FreeBSD__
+#if !defined(__FreeBSD__) && !defined(__MidnightBSD__)
 	{
 		if (prctl(PR_GET_NAME, (unsigned long) name, 0, 0, 0) == 0) {
 			prgname = name;
diff --git a/src/pipewire/private.h b/src/pipewire/private.h
index 52629f4a3..b892074a6 100644
--- a/src/pipewire/private.h
+++ b/src/pipewire/private.h
@@ -40,7 +40,7 @@ extern "C" {
 #include <spa/utils/result.h>
 #include <spa/utils/type-info.h>
 
-#ifdef __FreeBSD__
+#if defined(__FreeBSD__) || defined(__MidnightBSD__)
 struct ucred {
 };
 #endif
diff --git a/src/pipewire/thread.c b/src/pipewire/thread.c
index f699ebf5b..72be387bd 100644
--- a/src/pipewire/thread.c
+++ b/src/pipewire/thread.c
@@ -62,9 +62,9 @@ error:
 	return NULL;
 }
 
-#ifdef __FreeBSD__
+#if defined(__FreeBSD__) || defined(__MidnightBSD__)
 #include <sys/param.h>
-#if __FreeBSD_version < 1202000
+#if __FreeBSD_version < 1202000 || defined(__MidnightBSD__)
 int pthread_setname_np(pthread_t thread, const char *name)
 {
 	pthread_set_name_np(thread, name);
diff --git a/src/tools/pw-cli.c b/src/tools/pw-cli.c
index f45d10887..17ffc4897 100644
--- a/src/tools/pw-cli.c
+++ b/src/tools/pw-cli.c
@@ -30,7 +30,7 @@
 #include <signal.h>
 #include <string.h>
 #include <ctype.h>
-#ifndef __FreeBSD__
+#if !defined(__FreeBSD__) && !defined(__MidnightBSD__)
 #include <alloca.h>
 #endif
 #include <getopt.h>