diff --git a/library/ssl_tls.c b/library/ssl_tls.c
index b2d1294..a0b586a 100644
--- a/library/ssl_tls.c
+++ b/library/ssl_tls.c
@@ -1805,10 +1805,7 @@
     return( 0 );
 }
 
-#if defined(MBEDTLS_SSL_SOME_SUITES_USE_CBC) && \
-    ( defined(MBEDTLS_SSL_PROTO_TLS1) ||        \
-      defined(MBEDTLS_SSL_PROTO_TLS1_1) ||      \
-      defined(MBEDTLS_SSL_PROTO_TLS1_2) )
+#if defined(MBEDTLS_SSL_SOME_SUITES_USE_TLS_CBC)
 /*
  * Constant-flow conditional memcpy:
  *  - if c1 == c2, equivalent to memcpy(dst, src, len),
@@ -1918,7 +1915,7 @@
     mbedtls_md_free( &aux );
     return( 0 );
 }
-#endif /* MBEDTLS_SSL_SOME_SUITES_USE_CBC && TLS 1.0-1.2 */
+#endif /* MBEDTLS_SSL_SOME_SUITES_USE_TLS_CBC */
 
 static int ssl_decrypt_buf( mbedtls_ssl_context *ssl )
 {