diff --git a/include/net/ieee80211_crypt.h b/include/net/ieee80211_crypt.h
index cd82c3e..eb476414 100644
--- a/include/net/ieee80211_crypt.h
+++ b/include/net/ieee80211_crypt.h
@@ -47,7 +47,8 @@
 	/* deinitialize crypto context and free allocated private data */
 	void (*deinit) (void *priv);
 
-	int (*build_iv) (struct sk_buff * skb, int hdr_len, void *priv);
+	int (*build_iv) (struct sk_buff * skb, int hdr_len,
+			 u8 *key, int keylen, void *priv);
 
 	/* encrypt/decrypt return < 0 on error or >= 0 on success. The return
 	 * value from decrypt_mpdu is passed as the keyidx value for