1 files changed, 1 insertions, 1 deletions
diff --git a/Swiften/Avatars/VCardUpdateAvatarManager.h b/Swiften/Avatars/VCardUpdateAvatarManager.h
index 3409f99..333516b 100644
--- a/Swiften/Avatars/VCardUpdateAvatarManager.h
+++ b/Swiften/Avatars/VCardUpdateAvatarManager.h
@@ -1,46 +1,46 @@
 /*
  * Copyright (c) 2010-2013 Remko Tronçon
  * Licensed under the GNU General Public License v3.
  * See Documentation/Licenses/GPLv3.txt for more information.
  */
 
 #pragma once
 
 #include <boost/shared_ptr.hpp>
 #include <map>
 
 #include <Swiften/Base/API.h>
 #include <Swiften/Avatars/AvatarProvider.h>
 #include <Swiften/JID/JID.h>
 #include <Swiften/Elements/Presence.h>
 #include <Swiften/Elements/VCard.h>
 #include <Swiften/Elements/ErrorPayload.h>
 
 namespace Swift {
 	class MUCRegistry;
 	class AvatarStorage;
 	class StanzaChannel;
 	class VCardManager;
 	class CryptoProvider;
 
 	class SWIFTEN_API VCardUpdateAvatarManager : public AvatarProvider, public boost::bsignals::trackable {
 		public:
 			VCardUpdateAvatarManager(VCardManager*, StanzaChannel*, AvatarStorage*, CryptoProvider* crypto, MUCRegistry* = NULL);
 
-			std::string getAvatarHash(const JID&) const;
+			boost::optional<std::string> getAvatarHash(const JID&) const;
 
 		private:
 			void handlePresenceReceived(boost::shared_ptr<Presence>);
 			void handleStanzaChannelAvailableChanged(bool);
 			void handleVCardChanged(const JID& from, VCard::ref);
 			void setAvatarHash(const JID& from, const std::string& hash);
 			JID getAvatarJID(const JID& o) const;
 
 		private:
 			VCardManager* vcardManager_;
 			AvatarStorage* avatarStorage_;
 			CryptoProvider* crypto_;
 			MUCRegistry* mucRegistry_;
 			std::map<JID, std::string> avatarHashes_;
 	};
 }