diff --git a/audio/zita-alsa-pcmi/Makefile b/audio/zita-alsa-pcmi/Makefile
index 67efe783550b..9fed0e2a1ccb 100644
--- a/audio/zita-alsa-pcmi/Makefile
+++ b/audio/zita-alsa-pcmi/Makefile
@@ -1,49 +1,49 @@
 PORTNAME=	zita-alsa-pcmi
-DISTVERSION=	0.4.0
+DISTVERSION=	0.5.1
 CATEGORIES=	audio
 MASTER_SITES=	https://kokkinizita.linuxaudio.org/linuxaudio/downloads/
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Easy access to ALSA PCM devices
 
 LICENSE=	GPLv3
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 LIB_DEPENDS=	libasound.so:audio/alsa-lib
 
 USES=		gmake localbase:ldflags pkgconfig tar:bz2
 USE_LDCONFIG=	yes
 
 CXXFLAGS+=	-I../source
 LDFLAGS+=	-L../source
 
 PLIST_FILES=	bin/alsa_delay \
 		bin/alsa_loopback \
 		include/zita-alsa-pcmi.h \
 		lib/libzita-alsa-pcmi.so \
 		lib/libzita-alsa-pcmi.so.${DISTVERSION:R:R} \
 		lib/libzita-alsa-pcmi.so.${DISTVERSION}
 
 do-build:
 .for d in source apps
 	@cd ${BUILD_WRKSRC}/${d} && \
 		${ECHO} "Building in ${d}" && \
 		${SETENV} ${MAKE_ENV} ${MAKE_CMD} ${MAKE_FLAGS} ${MAKEFILE} ${_MAKE_JOBS} ${MAKE_ARGS}
 .endfor
 
 do-install:
 .for d in source apps
 	@cd ${INSTALL_WRKSRC}/${d} && \
 		${ECHO} "Installing in ${d}" && \
 		${SETENV} ${MAKE_ENV} ${FAKEROOT} ${MAKE_CMD} ${MAKE_FLAGS} ${MAKEFILE} ${MAKE_ARGS} ${INSTALL_TARGET}
 .endfor
 
 post-install:
 	@cd ${STAGEDIR}${PREFIX} && \
 		(cd lib && ${RLN} libzita-alsa-pcmi.so.${DISTVERSION} libzita-alsa-pcmi.so.${DISTVERSION:R:R}) && \
 		${STRIP_CMD} \
 			bin/alsa_delay \
 			bin/alsa_loopback \
 			lib/libzita-alsa-pcmi.so.${DISTVERSION}
 
 .include <bsd.port.mk>
diff --git a/audio/zita-alsa-pcmi/distinfo b/audio/zita-alsa-pcmi/distinfo
index a75c95e46b72..6b327c414cc3 100644
--- a/audio/zita-alsa-pcmi/distinfo
+++ b/audio/zita-alsa-pcmi/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1640969540
-SHA256 (zita-alsa-pcmi-0.4.0.tar.bz2) = bd8c9f360dfb541fb60e48a713baf1e22d41b2c74c19a0fe9f2d34e72f50f1c5
-SIZE (zita-alsa-pcmi-0.4.0.tar.bz2) = 21673
+TIMESTAMP = 1657828442
+SHA256 (zita-alsa-pcmi-0.5.1.tar.bz2) = cf200a68edb64a17b57bffb33e38b048778272d18b5589d3d2f5a01ce0f34b07
+SIZE (zita-alsa-pcmi-0.5.1.tar.bz2) = 21728
diff --git a/audio/zita-alsa-pcmi/files/patch-source_zita-alsa-pcmi.cc b/audio/zita-alsa-pcmi/files/patch-source_zita-alsa-pcmi.cc
index 81cfa0fd035c..fffd2fc20f16 100644
--- a/audio/zita-alsa-pcmi/files/patch-source_zita-alsa-pcmi.cc
+++ b/audio/zita-alsa-pcmi/files/patch-source_zita-alsa-pcmi.cc
@@ -1,38 +1,20 @@
---- source/zita-alsa-pcmi.cc.orig	2021-11-26 09:24:45 UTC
+--- source/zita-alsa-pcmi.cc.orig	2022-07-14 07:07:32 UTC
 +++ source/zita-alsa-pcmi.cc
 @@ -18,9 +18,17 @@
  // ----------------------------------------------------------------------------
  
  
 +#if defined(__FreeBSD__)
 +#include <machine/endian.h>
 +#else
  #include <endian.h>
 +#endif
  #include <stdint.h>
 +#if defined(__FreeBSD__)
 +#include <infiniband/byteswap.h>
 +#else
  #include <byteswap.h>
 +#endif
  #include <sys/time.h>
  #include "zita-alsa-pcmi.h"
  
-@@ -983,7 +991,7 @@ char *Alsa_pcmi::play_floatre (const float *src, char 
-     while (nfrm--)
-     {
-         d = *src;
--        *((float *) dst) = __bswap_32 (d);
-+        *((float *) dst) = bswap_32 (d);
-         dst += _play_step;
-         src += step;
-     }  
-@@ -1105,7 +1113,7 @@ const char *Alsa_pcmi::capt_floatre (const char *src, 
-     while (nfrm--)
-     {
-         d = *((float *) src);
--        *dst = __bswap_32 (d);
-+        *dst = bswap_32 (d);
-         dst += step;
-         src += _capt_step;
-     }