diff --git a/tools/perf/util/auxtrace.h b/tools/perf/util/auxtrace.h
index 0a6ce9c4fc11..d88f6e9eb461 100644
--- a/tools/perf/util/auxtrace.h
+++ b/tools/perf/util/auxtrace.h
@@ -23,6 +23,7 @@
 #include <linux/list.h>
 #include <linux/perf_event.h>
 #include <linux/types.h>
+#include <asm/bitsperlong.h>
 
 #include "../perf.h"
 #include "event.h"