1 files changed, 1 insertions, 1 deletions
diff --git a/Swiften/Serializer/StanzaAckSerializer.h b/Swiften/Serializer/StanzaAckSerializer.h
index f5a27dc..228d67b 100644
--- a/Swiften/Serializer/StanzaAckSerializer.h
+++ b/Swiften/Serializer/StanzaAckSerializer.h
@@ -23,10 +23,10 @@ namespace Swift {
 
             virtual SafeByteArray serialize(std::shared_ptr<ToplevelElement> element) const {
                 StanzaAck::ref stanzaAck(std::dynamic_pointer_cast<StanzaAck>(element));
                 assert(stanzaAck->isValid());
                 XMLElement result("a", "urn:xmpp:sm:2");
-                result.setAttribute("h", std::string(boost::lexical_cast<std::string>(stanzaAck->getHandledStanzasCount())));
+                result.setAttribute("h", std::string(std::to_string(stanzaAck->getHandledStanzasCount())));
                 return createSafeByteArray(result.serialize());
             }
     };
 }