diff --git a/library/ssl_tls13_client.c b/library/ssl_tls13_client.c
index ff448de705..2e263844db 100644
--- a/library/ssl_tls13_client.c
+++ b/library/ssl_tls13_client.c
@@ -1646,8 +1646,8 @@ static int ssl_tls13_flush_buffers( mbedtls_ssl_context *ssl )
  */
 static int ssl_tls13_handshake_wrapup( mbedtls_ssl_context *ssl )
 {
-    mbedtls_platform_zeroize( &ssl->handshake->tls1_3_master_secrets,
-                              sizeof(ssl->handshake->tls1_3_master_secrets));
+    mbedtls_platform_zeroize( &ssl->handshake->tls13_master_secrets,
+                              sizeof(ssl->handshake->tls13_master_secrets));
     mbedtls_platform_zeroize( &ssl->handshake->tls13_hs_secrets,
                               sizeof(ssl->handshake->tls13_hs_secrets));