diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h
index 365bf53..977b3a1 100644
--- a/tools/perf/util/session.h
+++ b/tools/perf/util/session.h
@@ -57,10 +57,11 @@
 
 struct perf_event_ops;
 
-typedef int (*event_op)(event_t *self, struct perf_sample *sample,
+typedef int (*event_op)(union perf_event *self, struct perf_sample *sample,
 			struct perf_session *session);
-typedef int (*event_synth_op)(event_t *self, struct perf_session *session);
-typedef int (*event_op2)(event_t *self, struct perf_session *session,
+typedef int (*event_synth_op)(union perf_event *self,
+			      struct perf_session *session);
+typedef int (*event_op2)(union perf_event *self, struct perf_session *session,
 			 struct perf_event_ops *ops);
 
 struct perf_event_ops {
@@ -157,11 +158,11 @@
 }
 
 static inline int perf_session__parse_sample(struct perf_session *session,
-					     const event_t *event,
+					     const union perf_event *event,
 					     struct perf_sample *sample)
 {
-	return event__parse_sample(event, session->sample_type,
-				   session->sample_id_all, sample);
+	return perf_event__parse_sample(event, session->sample_type,
+					session->sample_id_all, sample);
 }
 
 #endif /* __PERF_SESSION_H */