diff --git a/t/minicrypto.c b/t/minicrypto.c
index c02f318..bf09040 100644
--- a/t/minicrypto.c
+++ b/t/minicrypto.c
@@ -52,7 +52,7 @@
     uECC_make_key(pub, signer.key, uECC_secp256r1());
     ptls_buffer_init(&sigbuf, sigbuf_small, sizeof(sigbuf_small));
 
-    ok(secp256r1sha256_sign(&signer.super, NULL, NULL, NULL, &selected, &sigbuf, ptls_iovec_init(msg, 32),
+    ok(secp256r1sha256_sign(&signer.super, NULL, NULL, &selected, &sigbuf, ptls_iovec_init(msg, 32),
                             (uint16_t[]){PTLS_SIGNATURE_ECDSA_SECP256R1_SHA256}, 1) == 0);
     ok(selected == PTLS_SIGNATURE_ECDSA_SECP256R1_SHA256);