diff --git a/tools/perf/tests/expand-cgroup.c b/tools/perf/tests/expand-cgroup.c
index d5771e4d094f..4c59f3ae438f 100644
--- a/tools/perf/tests/expand-cgroup.c
+++ b/tools/perf/tests/expand-cgroup.c
@@ -145,7 +145,7 @@ static int expand_libpfm_events(void)
 	int ret;
 	struct evlist *evlist;
 	struct rblist metric_events;
-	const char event_str[] = "UNHALTED_CORE_CYCLES";
+	const char event_str[] = "CYCLES";
 	struct option opt = {
 		.value = &evlist,
 	};