diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index fa9d652c2dc3c07182028d4a196293333be75d78..3d56047394938c436714d79c912d2e91f3846b93 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -262,7 +262,7 @@ static void perf_event_ops__fill_defaults(struct perf_event_ops *handler)
 	if (handler->exit == NULL)
 		handler->exit = process_event_stub;
 	if (handler->lost == NULL)
-		handler->lost = process_event_stub;
+		handler->lost = event__process_lost;
 	if (handler->read == NULL)
 		handler->read = process_event_stub;
 	if (handler->throttle == NULL)