diff --git a/tests/suites/test_suite_ssl.function b/tests/suites/test_suite_ssl.function
index 674e6496e..624f8e063 100644
--- a/tests/suites/test_suite_ssl.function
+++ b/tests/suites/test_suite_ssl.function
@@ -4517,7 +4517,7 @@ void ssl_tls13_create_psk_binder( int hash_alg,
                                   data_t *transcript,
                                   data_t *binder_expected )
 {
-    unsigned char binder[ MBEDTLS_MD_MAX_SIZE ];
+    unsigned char binder[ MBEDTLS_HASH_MAX_SIZE ];
 
     /* Double-check that we've passed sane parameters. */
     psa_algorithm_t alg = (psa_algorithm_t) hash_alg;
@@ -4649,7 +4649,7 @@ void ssl_tls13_key_evolution( int hash_alg,
                               data_t *input,
                               data_t *expected )
 {
-    unsigned char secret_new[ MBEDTLS_MD_MAX_SIZE ];
+    unsigned char secret_new[ MBEDTLS_HASH_MAX_SIZE ];
 
     PSA_INIT();