diff --git a/sys/vm/vm_page.c b/sys/vm/vm_page.c
--- a/sys/vm/vm_page.c
+++ b/sys/vm/vm_page.c
@@ -460,7 +460,7 @@
 	vmd->vmd_page_count = 0;
 	vmd->vmd_free_count = 0;
 	vmd->vmd_segs = 0;
-	vmd->vmd_oom = FALSE;
+	vmd->vmd_oom = false;
 	for (i = 0; i < PQ_COUNT; i++) {
 		pq = &vmd->vmd_pagequeues[i];
 		TAILQ_INIT(&pq->pq_pl);
diff --git a/sys/vm/vm_pageout.c b/sys/vm/vm_pageout.c
--- a/sys/vm/vm_pageout.c
+++ b/sys/vm/vm_pageout.c
@@ -1816,7 +1816,7 @@
 		vmd->vmd_oom_seq++;
 	if (vmd->vmd_oom_seq < vm_pageout_oom_seq) {
 		if (vmd->vmd_oom) {
-			vmd->vmd_oom = FALSE;
+			vmd->vmd_oom = false;
 			atomic_subtract_int(&vm_pageout_oom_vote, 1);
 		}
 		return;
@@ -1831,7 +1831,7 @@
 	if (vmd->vmd_oom)
 		return;
 
-	vmd->vmd_oom = TRUE;
+	vmd->vmd_oom = true;
 	old_vote = atomic_fetchadd_int(&vm_pageout_oom_vote, 1);
 	if (old_vote != vm_ndomains - 1)
 		return;
@@ -1849,7 +1849,7 @@
 	 * memory condition is still there, due to vmd_oom being
 	 * false.
 	 */
-	vmd->vmd_oom = FALSE;
+	vmd->vmd_oom = false;
 	atomic_subtract_int(&vm_pageout_oom_vote, 1);
 }
 
diff --git a/sys/vm/vm_pagequeue.h b/sys/vm/vm_pagequeue.h
--- a/sys/vm/vm_pagequeue.h
+++ b/sys/vm/vm_pagequeue.h
@@ -257,7 +257,7 @@
 
 	/* Paging control variables, used within single threaded page daemon. */
 	struct pidctrl vmd_pid;		/* Pageout controller. */
-	boolean_t vmd_oom;
+	bool vmd_oom;
 	u_int vmd_inactive_threads;
 	u_int vmd_inactive_shortage;		/* Per-thread shortage. */
 	blockcount_t vmd_inactive_running;	/* Number of inactive threads. */