diff --git a/net/mac80211/michael.h b/net/mac80211/michael.h
index 69b4501..3b848da 100644
--- a/net/mac80211/michael.h
+++ b/net/mac80211/michael.h
@@ -18,7 +18,7 @@
 	u32 l, r;
 };
 
-void michael_mic(const u8 *key, const u8 *da, const u8 *sa, u8 priority,
+void michael_mic(const u8 *key, struct ieee80211_hdr *hdr,
 		 const u8 *data, size_t data_len, u8 *mic);
 
 #endif /* MICHAEL_H */