diff --git a/library/ssl_tls13_generic.c b/library/ssl_tls13_generic.c
index f0b84de..718e8a9 100644
--- a/library/ssl_tls13_generic.c
+++ b/library/ssl_tls13_generic.c
@@ -951,6 +951,9 @@
         return( MBEDTLS_ERR_SSL_HANDSHAKE_FAILURE );
     }
 
+    MBEDTLS_SSL_DEBUG_MSG( 2, ( "CertificateVerify with %s",
+                                mbedtls_ssl_sig_alg_to_str( algorithm )) );
+
     if( mbedtls_ssl_tls13_get_pk_type_and_md_alg_from_sig_alg(
                                         algorithm, &pk_type, &md_alg ) != 0 )
     {