Index: games/openjk/Makefile
===================================================================
--- games/openjk/Makefile
+++ games/openjk/Makefile
@@ -21,10 +21,11 @@
 USE_XORG=	x11
 
 CXXFLAGS+=	-DNDEBUG
-PLIST_SUB=	ARCH="${ARCH}"
+OPENJK_ARCH=	${ARCH:S/powerpc64/ppc64/}
+PLIST_SUB=	ARCH="${OPENJK_ARCH}"
 SUB_FILES=	jamp \
 		jasp
-SUB_LIST=	ARCH="${ARCH}"
+SUB_LIST=	ARCH="${OPENJK_ARCH}"
 
 post-install:
 	${INSTALL_SCRIPT} ${WRKDIR}/jamp ${WRKDIR}/jasp ${STAGEDIR}${PREFIX}/bin