1 files changed, 1 insertions, 1 deletions
diff --git a/Swiften/IDN/LibIDNConverter.h b/Swiften/IDN/LibIDNConverter.h
index 23f6bbd..4cfff1a 100644
--- a/Swiften/IDN/LibIDNConverter.h
+++ b/Swiften/IDN/LibIDNConverter.h
@@ -17,7 +17,7 @@ namespace Swift {
 			virtual std::string getStringPrepared(const std::string& s, StringPrepProfile profile) SWIFTEN_OVERRIDE;
 			virtual SafeByteArray getStringPrepared(const SafeByteArray& s, StringPrepProfile profile) SWIFTEN_OVERRIDE;
 
-			virtual std::string getIDNAEncoded(const std::string& s) SWIFTEN_OVERRIDE;
+			virtual boost::optional<std::string> getIDNAEncoded(const std::string& s) SWIFTEN_OVERRIDE;
 	};
 }