diff --git a/sys/amd64/amd64/mp_machdep.c b/sys/amd64/amd64/mp_machdep.c
index 3c0a92363cf..3318dddadcf 100644
--- a/sys/amd64/amd64/mp_machdep.c
+++ b/sys/amd64/amd64/mp_machdep.c
@@ -440,7 +440,7 @@ smp_targeted_tlb_shootdown(cpuset_t mask, u_int vector, pmap_t pmap,
 	smp_tlb_addr1 = addr1;
 	smp_tlb_addr2 = addr2;
 	smp_tlb_pmap = pmap;
-	atomic_store_rel_int(&smp_tlb_wait, 0);
+	smp_tlb_wait =  0;
 	if (CPU_ISFULLSET(&mask)) {
 		ncpu = othercpus;
 		ipi_all_but_self(vector);
diff --git a/sys/i386/i386/mp_machdep.c b/sys/i386/i386/mp_machdep.c
index 93845efed18..9b8b9c91971 100644
--- a/sys/i386/i386/mp_machdep.c
+++ b/sys/i386/i386/mp_machdep.c
@@ -504,7 +504,7 @@ smp_tlb_shootdown(u_int vector, vm_offset_t addr1, vm_offset_t addr2)
 	mtx_lock_spin(&smp_ipi_mtx);
 	smp_tlb_addr1 = addr1;
 	smp_tlb_addr2 = addr2;
-	atomic_store_rel_int(&smp_tlb_wait, 0);
+	smp_tlb_wait = 0;
 	ipi_all_but_self(vector);
 	while (smp_tlb_wait < ncpu)
 		ia32_pause();