diff --git a/science/hdf/Makefile b/science/hdf/Makefile
index bc9528d31ca9..a565101a1f89 100644
--- a/science/hdf/Makefile
+++ b/science/hdf/Makefile
@@ -1,52 +1,55 @@
 # Created by: mi
 
 PORTNAME=	hdf
 PORTVERSION=	4.2.15
 PORTEPOCH=	1
 CATEGORIES=	science archivers graphics
 MASTER_SITES=	http://www.hdfgroup.org/ftp/HDF/releases/HDF${PORTVERSION}/src/ \
 		ftp://ftp.hdfgroup.org/HDF/releases/HDF${PORTVERSION}/src/
 
 MAINTAINER=	ports@FreeBSD.org
 COMMENT=	Hierarchical Data Format library (from NCSA)
 
 NOT_FOR_ARCHS=		aarch64 armv6 armv7
 NOT_FOR_ARCHS_REASON=	fails to compile: no machine type has been defined
 
 LIB_DEPENDS=	libsz.so:science/szip
 
 CONFLICTS_INSTALL=	netcdf-4.[0-9]*
 
 USES=		fortran jpeg libtool
 GNU_CONFIGURE=	yes
 CONFIGURE_ARGS=	--enable-shared --with-jpeg=${LOCALBASE} \
 		--with-szlib=${LOCALBASE}
 USE_LDCONFIG=	yes
 INSTALL_TARGET=	install-strip
 TEST_TARGET=	check
 
 PORTDATA=	*
 PORTEXAMPLES=	*
 
 OPTIONS_DEFINE=	EXAMPLES
 
 .include <bsd.port.pre.mk>
 
 .if ${GCC_DEFAULT} >= 10
 # workaround for Type mismatch between actual argument at (1) and actual argument at (2) (CHARACTER(0)/INTEGER(4)).
 # in theory, this should set FCFLAGS, but the port does not conform
 FFLAGS+=	-fallow-argument-mismatch
 .endif
 
 post-patch:
 	@${REINPLACE_CMD} -e '/PROD_/ s|=.*|=""|' ${WRKSRC}/config/freebsd
 	@${REINPLACE_CMD} -e 's/ || (__APPLE__.*//' \
 		${WRKSRC}/hdf/test/fortest.c
 
 post-install:
 	${INSTALL_MAN} ${WRKSRC}/man/hdfunpac.1 \
 		${STAGEDIR}${MAN1PREFIX}/man/man1
+	# Allow to build on PowerPC
+	@${REINPLACE_CMD} -e '/if defined (__APPLE__)/ \
+		s,),) || defined(__powerpc__),' ${WRKSRC}/hdf/src/hdfi.h
 	${INSTALL_MAN} ${WRKSRC}/man/gr_chunk.3 \
 		${STAGEDIR}${MAN3PREFIX}/man/man3
 
 .include <bsd.port.post.mk>