diff --git a/include/Swiften/Server/UserRegistry.h b/include/Swiften/Server/UserRegistry.h
index 56456f0f9b16165580786838ca4e1bea1e409a3f..5781802b70739961cfcc5e05d4c8c2a4217c5ced 100644
--- a/include/Swiften/Server/UserRegistry.h
+++ b/include/Swiften/Server/UserRegistry.h
@@ -19,6 +19,8 @@ namespace Swift {
 
 			virtual bool isValidUserPassword(const JID& user, const SafeByteArray& password) = 0;
 
+			virtual void stopLogin(const JID &/*user*/) {};
+
 			boost::signal<void (const std::string &user)> onPasswordValid;
 			boost::signal<void (const std::string &user)> onPasswordInvalid;