diff --git a/src/auth.cc b/src/auth.cc
index 0200374..efef204 100644
--- a/src/auth.cc
+++ b/src/auth.cc
@@ -37,11 +37,12 @@ typedef struct {
    enum AuthParseDigestQOP_t qop;
 } AuthParse_t;
 
-typedef struct {
+struct AuthHost_t
+{
    char *scheme;
    char *authority;
    Dlist *realms;
-} AuthHost_t;
+};
 
 typedef struct {
    const AuthParse_t *auth_parse;
@@ -547,7 +548,7 @@ static void Auth_do_auth_dialog_cb(const char *user, const char *password,
    /* find or create the host */
    if (!(host = Auth_host_by_url(data->url))) {
       /* create a new host */
-      host = dNew(AuthHost_t, 1);
+      host = std::make_unique< AuthHost_t >().release();
       host->scheme = dStrdup(URL_SCHEME(data->url));
       host->authority = dStrdup(URL_AUTHORITY(data->url));
       host->realms = dList_new(1);