diff --git a/sys/vm/vm_page.c b/sys/vm/vm_page.c
index 4872472cd1fa..c37ae13b68c3 100644
--- a/sys/vm/vm_page.c
+++ b/sys/vm/vm_page.c
@@ -3397,7 +3397,7 @@ vm_page_advise(vm_page_t m, int advice)
 		 * But we do make the page as freeable as we can without
 		 * actually taking the step of unmapping it.
 		 */
-		m->dirty = 0;
+		vm_page_undirty(m);
 	else if (advice != MADV_DONTNEED)
 		return;