1 files changed, 1 insertions, 1 deletions

diff --git a/src/lib/libssl/d1_srvr.c b/src/lib/libssl/d1_srvr.c
index a6a4c87ea6..149983be30 100644
--- a/src/lib/libssl/d1_srvr.c
+++ b/src/lib/libssl/d1_srvr.c
@@ -1271,7 +1271,7 @@ int dtls1_send_server_key_exchange(SSL *s)
                                 EVP_SignInit_ex(&md_ctx,EVP_ecdsa(), NULL);
                                 EVP_SignUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);
                                 EVP_SignUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);
-                                EVP_SignUpdate(&md_ctx,&(d[4]),n);
+                                EVP_SignUpdate(&md_ctx,&(d[DTLS1_HM_HEADER_LENGTH]),n);
                                 if (!EVP_SignFinal(&md_ctx,&(p[2]),
                                         (unsigned int *)&i,pkey))
                                         {