diff --git a/tools/perf/util/trace-event-parse.c b/tools/perf/util/trace-event-parse.c
index 4ec165a..39f22f8 100644
--- a/tools/perf/util/trace-event-parse.c
+++ b/tools/perf/util/trace-event-parse.c
@@ -45,6 +45,7 @@
 	perf_pevent = pevent_alloc();
 	pevent = perf_pevent;
 
+	pevent_set_flag(pevent, PEVENT_NSEC_OUTPUT);
 	pevent_set_file_bigendian(pevent, file_bigendian);
 	pevent_set_host_bigendian(pevent, host_bigendian);