diff --git a/sys/kern/sysv_shm.c b/sys/kern/sysv_shm.c
index c717c0d9675..5c3551413c9 100644
--- a/sys/kern/sysv_shm.c
+++ b/sys/kern/sysv_shm.c
@@ -413,14 +413,12 @@ kern_shmat(td, shmid, shmaddr, shmflg)
 	vm_object_reference(shmseg->object);
 	rv = vm_map_find(&p->p_vmspace->vm_map, shmseg->object,
 	    0, &attach_va, size, (flags & MAP_FIXED) ? VMFS_NO_SPACE :
-	    VMFS_ANY_SPACE, prot, prot, 0);
+	    VMFS_ANY_SPACE, prot, prot, MAP_INHERIT_SHARE);
 	if (rv != KERN_SUCCESS) {
 		vm_object_deallocate(shmseg->object);
 		error = ENOMEM;
 		goto done2;
 	}
-	vm_map_inherit(&p->p_vmspace->vm_map,
-		attach_va, attach_va + size, VM_INHERIT_SHARE);
 
 	shmmap_s->va = attach_va;
 	shmmap_s->shmid = shmid;