diff --git a/src/advertising.c b/src/advertising.c
index fbfd90b4e..25df2297b 100644
--- a/src/advertising.c
+++ b/src/advertising.c
@@ -1120,8 +1120,10 @@ static bool parse_max_interval(DBusMessageIter *iter,
 	if (!(g_dbus_get_flags() & G_DBUS_FLAG_ENABLE_EXPERIMENTAL))
 		return true;
 
-	if (!iter)
+	if (!iter) {
+		client->max_interval = 0;
 		return false;
+	}
 
 	if (dbus_message_iter_get_arg_type(iter) != DBUS_TYPE_UINT32)
 		return false;