diff --git a/tools/perf/builtin-mem.c b/tools/perf/builtin-mem.c
index 643f4fa..1ebc673 100644
--- a/tools/perf/builtin-mem.c
+++ b/tools/perf/builtin-mem.c
@@ -1,3 +1,4 @@
+#include <inttypes.h>
 #include "builtin.h"
 #include "perf.h"