diff --git a/tools/perf/perf.h b/tools/perf/perf.h
index 14f1034f14f9..f960ccb2edc6 100644
--- a/tools/perf/perf.h
+++ b/tools/perf/perf.h
@@ -227,7 +227,7 @@ struct perf_record_opts {
 	unsigned int freq;
 	unsigned int mmap_pages;
 	unsigned int user_freq;
-	int	     branch_stack;
+	u64          branch_stack;
 	u64	     default_interval;
 	u64	     user_interval;
 };