diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index 48dbab4..c056cdc 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -375,6 +375,8 @@
 	.mmap	= event__process_mmap,
 	.comm	= event__process_comm,
 	.fork	= event__process_task,
+	.ordered_samples = true,
+	.ordering_requires_timestamps = true,
 };
 
 static int __cmd_annotate(void)