diff --git a/spectrum/src/frontends/slack/SlackUserManager.h b/spectrum/src/frontends/slack/SlackUserManager.h
index 103ae802b8f484c54c5af44a56a19bd22e81e31a..2a928eda8b698479cfffd0492a9412dd649ad10d 100644
--- a/spectrum/src/frontends/slack/SlackUserManager.h
+++ b/spectrum/src/frontends/slack/SlackUserManager.h
@@ -62,6 +62,8 @@ class SlackUserManager : public UserManager {
 		SlackSession *moveTempSession(const std::string &user);
 		void moveTempSession(const std::string &user, SlackSession *session);
 
+		bool handleAdminMessage(Swift::Message::ref message);
+
 	private:
 		void handleUserCreated(User *user);