diff --git a/include/net/ieee80211.h b/include/net/ieee80211.h
index 6048579..93a56de 100644
--- a/include/net/ieee80211.h
+++ b/include/net/ieee80211.h
@@ -114,7 +114,7 @@
 #define IEEE80211_DEBUG(level, fmt, args...) \
 do { if (ieee80211_debug_level & (level)) \
   printk(KERN_DEBUG "ieee80211: %c %s " fmt, \
-         in_interrupt() ? 'I' : 'U', __FUNCTION__ , ## args); } while (0)
+         in_interrupt() ? 'I' : 'U', __func__ , ## args); } while (0)
 static inline bool ieee80211_ratelimit_debug(u32 level)
 {
 	return (ieee80211_debug_level & level) && net_ratelimit();