diff --git a/include/transport/buddy.h b/include/transport/buddy.h
index 83a64a43eccf350150b7caf5ae71c5fbfda8f04a..fd72891546dc278ef5226a6feacc1d682aeab6aa 100644
--- a/include/transport/buddy.h
+++ b/include/transport/buddy.h
@@ -129,6 +129,8 @@ class Buddy {
 		/// \return avatar hash or empty string.
 		virtual std::string getIconHash() = 0;
 
+		static std::string JIDToLegacyName(const Swift::JID &jid);
+
 	private:
 		void generateJID();