diff --git a/ssl/ssl_rec.h b/ssl/ssl_rec.h
index fa91b00..101ec86 100644
--- a/ssl/ssl_rec.h
+++ b/ssl/ssl_rec.h
@@ -55,6 +55,9 @@ int ssl_create_rec_decoder PROTO_LIST((ssl_rec_decoder **dp,
 int ssl_decode_rec_data PROTO_LIST((ssl_obj *ssl,ssl_rec_decoder *d,
   int ct,int version,UCHAR *in,int inl,UCHAR *out,int *outl));
 
+int ssl3_check_mac(ssl_rec_decoder *d, int ct, int ver, UCHAR *data,
+  UINT4 datalen, UCHAR *mac);
+
 #define IS_AEAD_CIPHER(cs) (cs->enc==0x3b||cs->enc==0x3c)
 #endif