diff --git a/icecast/src/auth_url.c b/icecast/src/auth_url.c
index c592485..e1321c9 100644
--- a/icecast/src/auth_url.c
+++ b/icecast/src/auth_url.c
@@ -518,7 +518,9 @@ int auth_get_url_auth (auth_t *authenticator, config_options_t *options)
     curl_easy_setopt (url_info->handle, CURLOPT_WRITEDATA, url_info->handle);
     curl_easy_setopt (url_info->handle, CURLOPT_NOSIGNAL, 1L);
     curl_easy_setopt (url_info->handle, CURLOPT_TIMEOUT, 15L);
+#ifdef CURLOPT_PASSWDFUNCTION
     curl_easy_setopt (url_info->handle, CURLOPT_PASSWDFUNCTION, my_getpass);
+#endif
     curl_easy_setopt (url_info->handle, CURLOPT_ERRORBUFFER, &url_info->errormsg[0]);
 
     if (url_info->username && url_info->password)