diff --git a/devel/py-pysimdjson/Makefile b/devel/py-pysimdjson/Makefile
index 2be995e7463a..f6cb94b4a986 100644
--- a/devel/py-pysimdjson/Makefile
+++ b/devel/py-pysimdjson/Makefile
@@ -1,21 +1,23 @@
 # Created by: thierry@pompo.net
 
 PORTNAME=	pysimdjson
 PORTVERSION=	4.0.3
 CATEGORIES=	devel python
 MASTER_SITES=	CHEESESHOP
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	thierry@FreeBSD.org
 COMMENT=	Python bindings for the simdjson project
 
 LICENSE=	MIT
 
 USES=		python:3.7+
 USE_PYTHON=	cython distutils
 
+CFLAGS_powerpc64=	-mpower8-vector
+
 .if ! defined(WITH_DEBUG)
 LDFLAGS+=	-s
 .endif
 
 .include <bsd.port.mk>
diff --git a/devel/py-pysimdjson/files/patch-simdjson_simdjson.h b/devel/py-pysimdjson/files/patch-simdjson_simdjson.h
new file mode 100644
index 000000000000..017a1371519b
--- /dev/null
+++ b/devel/py-pysimdjson/files/patch-simdjson_simdjson.h
@@ -0,0 +1,20 @@
+--- simdjson/simdjson.h.orig	2022-04-21 05:39:10 UTC
++++ simdjson/simdjson.h
+@@ -17200,7 +17200,7 @@ simdjson_unused simdjson_warn_unused simdjson_really_i
+ #ifndef SIMDJSON_PPC64_NUMBERPARSING_H
+ #define SIMDJSON_PPC64_NUMBERPARSING_H
+ 
+-#include <byteswap.h>
++#include <sys/endian.h>
+ 
+ namespace simdjson {
+ namespace ppc64 {
+@@ -17213,7 +17213,7 @@ parse_eight_digits_unrolled(const uint8_t *chars) {
+   uint64_t val;
+   std::memcpy(&val, chars, sizeof(uint64_t));
+ #ifdef __BIG_ENDIAN__
+-  val = bswap_64(val);
++  val = bswap64(val);
+ #endif
+   val = (val & 0x0F0F0F0F0F0F0F0F) * 2561 >> 8;
+   val = (val & 0x00FF00FF00FF00FF) * 6553601 >> 16;