diff --git a/library/ssl_tls.c b/library/ssl_tls.c
index 6792273..afe32be 100644
--- a/library/ssl_tls.c
+++ b/library/ssl_tls.c
@@ -8323,6 +8323,7 @@
 }
 #endif /* MBEDTLS_SSL_CLI_C && !MBEDTLS_SSL_NO_SESSION_RESUMPTION */
 
+#if !defined(MBEDTLS_SSL_SINGLE_CIPHERSUITE)
 void mbedtls_ssl_conf_ciphersuites( mbedtls_ssl_config *conf,
                                    const int *ciphersuites )
 {
@@ -8344,6 +8345,7 @@
 
     conf->ciphersuite_list[minor] = ciphersuites;
 }
+#endif /* MBEDTLS_SSL_SINGLE_CIPHERSUITE */
 
 #if defined(MBEDTLS_X509_CRT_PARSE_C)
 void mbedtls_ssl_conf_cert_profile( mbedtls_ssl_config *conf,
@@ -10803,11 +10805,13 @@
 };
 #endif
 
+#if !defined(MBEDTLS_SSL_SINGLE_CIPHERSUITE)
 static int ssl_preset_suiteb_ciphersuites[] = {
     MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
     MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
     0
 };
+#endif /* !MBEDTLS_SSL_SINGLE_CIPHERSUITE */
 
 #if defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED)
 static int ssl_preset_suiteb_hashes[] = {
@@ -10943,11 +10947,13 @@
             conf->max_major_ver = MBEDTLS_SSL_MAX_MAJOR_VERSION;
             conf->max_minor_ver = MBEDTLS_SSL_MAX_MINOR_VERSION;
 
+#if !defined(MBEDTLS_SSL_SINGLE_CIPHERSUITE)
             conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_0] =
             conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_1] =
             conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_2] =
             conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_3] =
                                    ssl_preset_suiteb_ciphersuites;
+#endif /* MBEDTLS_SSL_SINGLE_CIPHERSUITE */
 
 #if defined(MBEDTLS_X509_CRT_PARSE_C)
             conf->cert_profile = &mbedtls_x509_crt_profile_suiteb;
@@ -10982,11 +10988,13 @@
                 conf->min_minor_ver = MBEDTLS_SSL_MINOR_VERSION_2;
 #endif
 
+#if !defined(MBEDTLS_SSL_SINGLE_CIPHERSUITE)
             conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_0] =
             conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_1] =
             conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_2] =
             conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_3] =
                                    mbedtls_ssl_list_ciphersuites();
+#endif /* MBEDTLS_SSL_SINGLE_CIPHERSUITE */
 
 #if defined(MBEDTLS_X509_CRT_PARSE_C)
             conf->cert_profile = &mbedtls_x509_crt_profile_default;