diff --git a/library/ssl_tls13_keys.c b/library/ssl_tls13_keys.c
index 3e62617a0..0b7d27955 100644
--- a/library/ssl_tls13_keys.c
+++ b/library/ssl_tls13_keys.c
@@ -1440,9 +1440,6 @@ int mbedtls_ssl_tls13_generate_application_keys(
                                    handshake->tls13_master_secrets.app,
                                    transcript, transcript_len,
                                    app_secrets );
-    /* Erase master secrets */
-    mbedtls_platform_zeroize( &ssl->handshake->tls13_master_secrets,
-                              sizeof( ssl->handshake->tls13_master_secrets ) );
     if( ret != 0 )
     {
         MBEDTLS_SSL_DEBUG_RET( 1,