diff --git a/cddl/lib/libzpool/Makefile b/cddl/lib/libzpool/Makefile
index bdd9ecdcd0a4..7e2841ab5203 100644
--- a/cddl/lib/libzpool/Makefile
+++ b/cddl/lib/libzpool/Makefile
@@ -14,7 +14,9 @@
 .if ${MACHINE_ARCH} == "i386" || ${MACHINE_ARCH} == "amd64" || ${MACHINE_ARCH} == "ia64" || ${MACHINE_ARCH} == "sparc64" || ${MACHINE_ARCH} == "powerpc64"
 .PATH: ${.CURDIR}/../../../sys/cddl/contrib/opensolaris/common/atomic/${MACHINE_ARCH}
 ATOMIC_SRCS=	opensolaris_atomic.S
+.if ${MACHINE_ARCH} != "ia64" && ${MACHINE_ARCH} != "sparc64"
 ACFLAGS+=	-Wa,--noexecstack
+.endif
 .else
 .PATH: ${.CURDIR}/../../../sys/cddl/compat/opensolaris/kern
 ATOMIC_SRCS=	opensolaris_atomic.c