diff --git a/library/ssl_tls13_server.c b/library/ssl_tls13_server.c
index a5a26d4..31d7508 100644
--- a/library/ssl_tls13_server.c
+++ b/library/ssl_tls13_server.c
@@ -830,16 +830,16 @@
         unsigned char *buf;
         size_t buf_len, msg_len;
 
-        MBEDTLS_SSL_PROC_CHK( mbedtls_ssl_tls13_start_handshake_msg( ssl,
+        MBEDTLS_SSL_PROC_CHK( mbedtls_ssl_start_handshake_msg( ssl,
                 MBEDTLS_SSL_HS_CERTIFICATE_REQUEST, &buf, &buf_len ) );
 
         MBEDTLS_SSL_PROC_CHK( ssl_tls13_write_certificate_request_body(
                                   ssl, buf, buf + buf_len, &msg_len ) );
 
-        mbedtls_ssl_tls13_add_hs_msg_to_checksum(
+        mbedtls_ssl_add_hs_msg_to_checksum(
             ssl, MBEDTLS_SSL_HS_CERTIFICATE_REQUEST, buf, msg_len );
 
-        MBEDTLS_SSL_PROC_CHK( mbedtls_ssl_tls13_finish_handshake_msg(
+        MBEDTLS_SSL_PROC_CHK( mbedtls_ssl_finish_handshake_msg(
                                   ssl, buf_len, msg_len ) );
     }
     else if( ret == SSL_CERTIFICATE_REQUEST_SKIP )