diff --git a/src/config.cpp b/src/config.cpp
index 24f57dfe5468164855d8ecb9469aa270fc7c13f9..22931b1a052c4850e2999814ff5727212620fb77 100644
--- a/src/config.cpp
+++ b/src/config.cpp
@@ -48,6 +48,7 @@ bool Config::load(const std::string &configfile, boost::program_options::options
 		("registration.username_field", value<std::string>()->default_value(""), "Label for username field")
 		("registration.username_mask", value<std::string>()->default_value(""), "Username mask")
 		("registration.encoding", value<std::string>()->default_value("en"), "Default encoding in registration form")
+		("database.type", value<std::string>()->default_value("none"), "Database type.")
 		("database.database", value<std::string>()->default_value(""), "Database used to store data")
 		("database.prefix", value<std::string>()->default_value(""), "Prefix of tables in database")
 	;