diff --git a/tools/perf/lib/include/perf/event.h b/tools/perf/lib/include/perf/event.h
index b90a8a21e613..c7cae58d2535 100644
--- a/tools/perf/lib/include/perf/event.h
+++ b/tools/perf/lib/include/perf/event.h
@@ -43,4 +43,11 @@ struct namespaces_event {
 	struct perf_ns_link_info link_info[];
 };
 
+struct fork_event {
+	struct perf_event_header header;
+	__u32			 pid, ppid;
+	__u32			 tid, ptid;
+	__u64			 time;
+};
+
 #endif /* __LIBPERF_EVENT_H */
diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
index 0d3ac4fd3ecf..38b258cbbd90 100644
--- a/tools/perf/util/event.h
+++ b/tools/perf/util/event.h
@@ -27,13 +27,6 @@
 #define PRI_lx64 PRIx64
 #endif
 
-struct fork_event {
-	struct perf_event_header header;
-	u32 pid, ppid;
-	u32 tid, ptid;
-	u64 time;
-};
-
 struct lost_event {
 	struct perf_event_header header;
 	u64 id;
diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c
index 55ff0c3182d6..8bdadb24f6ba 100644
--- a/tools/perf/util/python.c
+++ b/tools/perf/util/python.c
@@ -170,7 +170,7 @@ static PyMemberDef pyrf_task_event__members[] = {
 static PyObject *pyrf_task_event__repr(struct pyrf_event *pevent)
 {
 	return _PyUnicode_FromFormat("{ type: %s, pid: %u, ppid: %u, tid: %u, "
-				   "ptid: %u, time: %" PRIu64 "}",
+				   "ptid: %u, time: %" PRI_lu64 "}",
 				   pevent->event.header.type == PERF_RECORD_FORK ? "fork" : "exit",
 				   pevent->event.fork.pid,
 				   pevent->event.fork.ppid,