diff --git a/ssl/tls13_enc.cc b/ssl/tls13_enc.cc
index 0a36aab..e4f14c3 100644
--- a/ssl/tls13_enc.cc
+++ b/ssl/tls13_enc.cc
@@ -47,7 +47,7 @@
 }
 
 int tls13_init_key_schedule(SSL_HANDSHAKE *hs) {
-  if (!init_key_schedule(hs, ssl3_protocol_version(hs->ssl), hs->new_cipher)) {
+  if (!init_key_schedule(hs, ssl_protocol_version(hs->ssl), hs->new_cipher)) {
     return 0;
   }