diff --git a/src/core/core-url.c b/src/core/core-url.c
index fba1e998c..f47c7f602 100644
--- a/src/core/core-url.c
+++ b/src/core/core-url.c
@@ -666,7 +666,9 @@ struct t_url_option url_options[] =
 #endif
     URL_DEF_OPTION(PINNEDPUBLICKEY, STRING, NULL),
     URL_DEF_OPTION(SSL_VERIFYSTATUS, LONG, NULL),
+#if LIBCURL_VERSION_NUM < 0x080F00 /* < 8.15.0 */
     URL_DEF_OPTION(SSL_FALSESTART, LONG, NULL),
+#endif
 #if LIBCURL_VERSION_NUM >= 0x073400 /* 7.52.0 */
     URL_DEF_OPTION(PROXY_CAINFO, STRING, NULL),
     URL_DEF_OPTION(PROXY_CAPATH, STRING, NULL),