diff --git a/tools/perf/util/kvm-stat.h b/tools/perf/util/kvm-stat.h
index 1db31c075187..8eee8d073f41 100644
--- a/tools/perf/util/kvm-stat.h
+++ b/tools/perf/util/kvm-stat.h
@@ -69,7 +69,7 @@ struct kvm_events_ops {
 };
 
 struct exit_reasons_table {
-	unsigned long exit_code;
+	u64 exit_code;
 	const char *reason;
 };