diff --git a/library/ssl_tls13_client.c b/library/ssl_tls13_client.c
index 0c67c83..8b261d6 100644
--- a/library/ssl_tls13_client.c
+++ b/library/ssl_tls13_client.c
@@ -329,7 +329,7 @@
          */
         MBEDTLS_SSL_CHK_BUF_PTR(p, end, 4);
         p += 4;
-        ret = mbedtls_ssl_tls13_generate_and_write_dh_key_exchange(
+        ret = mbedtls_ssl_tls13_generate_and_write_xxdh_key_exchange(
             ssl, group_id, p, end, &key_exchange_len);
         p += key_exchange_len;
         if (ret != 0) {