diff --git a/devel/pwlib/Makefile b/devel/pwlib/Makefile
index ebc62aa72f53..c421ce64050d 100644
--- a/devel/pwlib/Makefile
+++ b/devel/pwlib/Makefile
@@ -33,6 +33,8 @@ MAKE_ENV=	PWLIBDIR=${WRKDIR}/pwlib
 THE_MACHTYPE=	${ARCH:S/i386/x86/}
 MAKE_ARGS=	OSTYPE=${OPSYS} MACHTYPE=${THE_MACHTYPE} OSRELEASE=${OSVERSION} CPLUS=${CXX}
 
+ONLY_FOR_ARCHS=	i386
+
 do-install:
 #	${INSTALL_PROGRAM} ${WRKSRC}/samples/simple/obj_${OPSYS}_${THE_MACHTYPE}_r/simph323 ${PREFIX}/bin
 
diff --git a/devel/pwlib152/Makefile b/devel/pwlib152/Makefile
index ebc62aa72f53..c421ce64050d 100644
--- a/devel/pwlib152/Makefile
+++ b/devel/pwlib152/Makefile
@@ -33,6 +33,8 @@ MAKE_ENV=	PWLIBDIR=${WRKDIR}/pwlib
 THE_MACHTYPE=	${ARCH:S/i386/x86/}
 MAKE_ARGS=	OSTYPE=${OPSYS} MACHTYPE=${THE_MACHTYPE} OSRELEASE=${OSVERSION} CPLUS=${CXX}
 
+ONLY_FOR_ARCHS=	i386
+
 do-install:
 #	${INSTALL_PROGRAM} ${WRKSRC}/samples/simple/obj_${OPSYS}_${THE_MACHTYPE}_r/simph323 ${PREFIX}/bin