diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index 34803e33dc80..6a186b668303 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -15,6 +15,7 @@ struct addr_location;
 struct map_symbol;
 struct mem_info;
 struct branch_info;
+struct branch_stack;
 struct block_info;
 struct symbol;
 struct ui_progress;