diff --git a/library/ssl_cli.c b/library/ssl_cli.c
index a68d802a8..9e35beda0 100644
--- a/library/ssl_cli.c
+++ b/library/ssl_cli.c
@@ -3974,11 +3974,6 @@ sign:
         rs_ctx = &ssl->handshake->ecrs_ctx.pk;
 #endif
 
-#if defined(MBEDTLS_USE_TINYCRYPT)
-    if ( uECC_get_rng() == 0 )
-        uECC_set_rng(&mbetls_uecc_rng_wrapper);
-#endif
-
     if( ( ret = mbedtls_pk_sign_restartable( mbedtls_ssl_own_key( ssl ),
                          md_alg, hash_start, hashlen,
                          ssl->out_msg + 6 + offset, &n,