diff --git a/sys/kern/kern_subr.c b/sys/kern/kern_subr.c
index addea42a5376..ee38f2da7f02 100644
--- a/sys/kern/kern_subr.c
+++ b/sys/kern/kern_subr.c
@@ -103,7 +103,9 @@ vm_pgmoveco(mapa, srcobj,  kaddr, uaddr)
 		return(EFAULT);
 	}
 	if ((user_pg = vm_page_lookup(uobject, upindex)) != NULL) {
-		vm_page_sleep_busy(user_pg, 1, "vm_pgmoveco");
+		vm_page_lock_queues();
+		if (!vm_page_sleep_if_busy(user_pg, 1, "vm_pgmoveco"))
+			vm_page_unlock_queues();
 		pmap_remove(map->pmap, uaddr, uaddr+PAGE_SIZE);
 		vm_page_lock_queues();
 		vm_page_busy(user_pg);