diff --git a/tools/perf/util/scripting-engines/trace-event-python.c b/tools/perf/util/scripting-engines/trace-event-python.c
index 1546b74..73ee12d 100644
--- a/tools/perf/util/scripting-engines/trace-event-python.c
+++ b/tools/perf/util/scripting-engines/trace-event-python.c
@@ -408,8 +408,11 @@
 	if (!t)
 		Py_FatalError("couldn't create Python tuple");
 
-	if (!event)
-		die("ug! no event found for type %d", (int)evsel->attr.config);
+	if (!event) {
+		snprintf(handler_name, sizeof(handler_name),
+			 "ug! no event found for type %" PRIu64, (u64)evsel->attr.config);
+		Py_FatalError(handler_name);
+	}
 
 	pid = raw_field_value(event, "common_pid", data);