diff --git a/library/ssl_client.c b/library/ssl_client.c
index ee5a78a..e7453d5 100644
--- a/library/ssl_client.c
+++ b/library/ssl_client.c
@@ -650,7 +650,7 @@
      */
     if( propose_tls13 && mbedtls_ssl_conf_tls13_some_psk_enabled( ssl ) )
     {
-        ret = mbedtls_ssl_tls13_write_pre_shared_key_ext_without_binders(
+        ret = mbedtls_ssl_tls13_write_identities_of_pre_shared_key_ext(
                   ssl, p, end, &output_len, binders_len );
         if( ret != 0 )
             return( ret );