diff --git a/audio/alsa-lib/Makefile b/audio/alsa-lib/Makefile
index b2c75983e0f1..e58627696bab 100644
--- a/audio/alsa-lib/Makefile
+++ b/audio/alsa-lib/Makefile
@@ -23,7 +23,6 @@ INSTALL_TARGET=	install-strip
 TEST_ENV=	${MAKE_ENV} ALSA_CONFIG_PATH="${FILESDIR}/asound.conf.sample"
 TEST_TARGET=	check
 CPPFLAGS+=	-I${FILESDIR}
-CPPFLAGS+=	-D_WANT_SEMUN
 
 OPTIONS_DEFINE=	PYTHON
 OPTIONS_SUB=	yes
diff --git a/audio/alsa-lib/files/patch-src_pcm_pcm__direct.c b/audio/alsa-lib/files/patch-src_pcm_pcm__direct.c
index 02e5d5e4ade6..ec8600e63c9d 100644
--- a/audio/alsa-lib/files/patch-src_pcm_pcm__direct.c
+++ b/audio/alsa-lib/files/patch-src_pcm_pcm__direct.c
@@ -1,17 +1,18 @@
 --- src/pcm/pcm_direct.c.orig	2016-03-31 13:10:39 UTC
 +++ src/pcm/pcm_direct.c
-@@ -44,12 +44,16 @@
+@@ -44,12 +44,17 @@
   *
   */
   
-+#if defined(__NetBSD__)
-+typedef __semun semun;
-+#elif !defined(__DragonFly__) && !defined(__FreeBSD__) && !defined(__OpenBSD__)
++#if !defined(__DragonFly__) && !defined(__OpenBSD__) \
++  && !(defined(__FreeBSD__) && __FreeBSD__ < 12)
  union semun {
  	int              val;    /* Value for SETVAL */
  	struct semid_ds *buf;    /* Buffer for IPC_STAT, IPC_SET */
  	unsigned short  *array;  /* Array for GETALL, SETALL */
++#ifdef __linux__
  	struct seminfo  *__buf;  /* Buffer for IPC_INFO (Linux specific) */
++#endif
  };
 +#endif