diff --git a/ssl/internal.h b/ssl/internal.h
index 084e9c3..a753329 100644
--- a/ssl/internal.h
+++ b/ssl/internal.h
@@ -2966,7 +2966,7 @@
 bool ssl_compare_public_and_private_key(const EVP_PKEY *pubkey,
                                        const EVP_PKEY *privkey);
 bool ssl_cert_check_private_key(const CERT *cert, const EVP_PKEY *privkey);
-int ssl_get_new_session(SSL_HANDSHAKE *hs, int is_server);
+bool ssl_get_new_session(SSL_HANDSHAKE *hs);
 int ssl_encrypt_ticket(SSL_HANDSHAKE *hs, CBB *out, const SSL_SESSION *session);
 int ssl_ctx_rotate_ticket_encryption_key(SSL_CTX *ctx);