diff --git a/programs/ssl/ssl_client2.c b/programs/ssl/ssl_client2.c
index 89ef2c2..1b4d654 100644
--- a/programs/ssl/ssl_client2.c
+++ b/programs/ssl/ssl_client2.c
@@ -1116,8 +1116,10 @@
     if( opt.force_ciphersuite[0] != DFL_FORCE_CIPHER )
         mbedtls_ssl_conf_ciphersuites( &conf, opt.force_ciphersuite );
 
+#if defined(MBEDTLS_ARC4_C)
     if( opt.arc4 != DFL_ARC4 )
         mbedtls_ssl_conf_arc4_support( &conf, opt.arc4 );
+#endif
 
     if( opt.allow_legacy != DFL_ALLOW_LEGACY )
         mbedtls_ssl_conf_legacy_renegotiation( &conf, opt.allow_legacy );
diff --git a/programs/ssl/ssl_server2.c b/programs/ssl/ssl_server2.c
index bef88cd..d0260ec 100644
--- a/programs/ssl/ssl_server2.c
+++ b/programs/ssl/ssl_server2.c
@@ -1637,8 +1637,10 @@
     if( opt.force_ciphersuite[0] != DFL_FORCE_CIPHER )
         mbedtls_ssl_conf_ciphersuites( &conf, opt.force_ciphersuite );
 
+#if defined(MBEDTLS_ARC4_C)
     if( opt.arc4 != DFL_ARC4 )
         mbedtls_ssl_conf_arc4_support( &conf, opt.arc4 );
+#endif
 
     if( opt.version_suites != NULL )
     {