1 files changed, 1 insertions, 1 deletions
diff --git a/Swiften/Avatars/OfflineAvatarManager.h b/Swiften/Avatars/OfflineAvatarManager.h
index 2098990..baceae8 100644
--- a/Swiften/Avatars/OfflineAvatarManager.h
+++ b/Swiften/Avatars/OfflineAvatarManager.h
@@ -1,25 +1,25 @@
 /*
  * Copyright (c) 2010 Remko Tronçon
  * Licensed under the GNU General Public License v3.
  * See Documentation/Licenses/GPLv3.txt for more information.
  */
 
 #pragma once
 
 #include <Swiften/Avatars/AvatarProvider.h>
 
 namespace Swift {
 	class AvatarStorage;
 
 	class OfflineAvatarManager : public AvatarProvider {
 		public:
 			OfflineAvatarManager(AvatarStorage*);
 			~OfflineAvatarManager();
 
-			virtual std::string getAvatarHash(const JID&) const;
+			virtual boost::optional<std::string> getAvatarHash(const JID&) const;
 			void setAvatar(const JID&, const std::string& hash);
 
 		private:
 			AvatarStorage* avatarStorage;
 	};
 }