diff --git a/tools/perf/util/map.h b/tools/perf/util/map.h
index 25ab4cd..d2250fc 100644
--- a/tools/perf/util/map.h
+++ b/tools/perf/util/map.h
@@ -96,7 +96,7 @@
 	return ip + map->start - map->pgoff;
 }
 
-static inline u64 identity__map_ip(struct map *map __used, u64 ip)
+static inline u64 identity__map_ip(struct map *map __maybe_unused, u64 ip)
 {
 	return ip;
 }