diff --git a/tools/perf/util/trace-event-scripting.c b/tools/perf/util/trace-event-scripting.c
index f7af2fc..66f4b78 100644
--- a/tools/perf/util/trace-event-scripting.c
+++ b/tools/perf/util/trace-event-scripting.c
@@ -36,11 +36,10 @@
 	return 0;
 }
 
-static void process_event_unsupported(int cpu __unused,
-				      void *data __unused,
-				      int size __unused,
-				      unsigned long long nsecs __unused,
-				      char *comm __unused)
+static void process_event_unsupported(union perf_event *event __unused,
+				      struct perf_sample *sample __unused,
+				      struct perf_session *session __unused,
+				      struct thread *thread __unused)
 {
 }