diff --git a/tools/perf/util/header.h b/tools/perf/util/header.h
index a604962..09365b3 100644
--- a/tools/perf/util/header.h
+++ b/tools/perf/util/header.h
@@ -97,35 +97,35 @@
 			  const char *name, bool is_kallsyms);
 int build_id_cache__remove_s(const char *sbuild_id, const char *debugdir);
 
-int perf_event__synthesize_attr(struct perf_event_ops *ops,
+int perf_event__synthesize_attr(struct perf_tool *tool,
 				struct perf_event_attr *attr, u16 ids, u64 *id,
 				perf_event__handler_t process);
-int perf_event__synthesize_attrs(struct perf_event_ops *ops,
+int perf_event__synthesize_attrs(struct perf_tool *tool,
 				 struct perf_session *session,
 				 perf_event__handler_t process);
 int perf_event__process_attr(union perf_event *event, struct perf_evlist **pevlist);
 
-int perf_event__synthesize_event_type(struct perf_event_ops *ops,
+int perf_event__synthesize_event_type(struct perf_tool *tool,
 				      u64 event_id, char *name,
 				      perf_event__handler_t process,
 				      struct machine *machine);
-int perf_event__synthesize_event_types(struct perf_event_ops *ops,
+int perf_event__synthesize_event_types(struct perf_tool *tool,
 				       perf_event__handler_t process,
 				       struct machine *machine);
-int perf_event__process_event_type(struct perf_event_ops *ops,
+int perf_event__process_event_type(struct perf_tool *tool,
 				   union perf_event *event);
 
-int perf_event__synthesize_tracing_data(struct perf_event_ops *ops,
+int perf_event__synthesize_tracing_data(struct perf_tool *tool,
 					int fd, struct perf_evlist *evlist,
 					perf_event__handler_t process);
 int perf_event__process_tracing_data(union perf_event *event,
 				     struct perf_session *session);
 
-int perf_event__synthesize_build_id(struct perf_event_ops *ops,
+int perf_event__synthesize_build_id(struct perf_tool *tool,
 				    struct dso *pos, u16 misc,
 				    perf_event__handler_t process,
 				    struct machine *machine);
-int perf_event__process_build_id(struct perf_event_ops *ops,
+int perf_event__process_build_id(struct perf_tool *tool,
 				 union perf_event *event,
 				 struct perf_session *session);