diff --git a/spectrum/src/frontends/xmpp/BlockSerializer.cpp b/spectrum/src/frontends/xmpp/BlockSerializer.cpp
index 8cbc02b7b38a0453310a48afe8365d155c9b2359..6f02faeca21f4623919cc4ff3785867a00df08f2 100644
--- a/spectrum/src/frontends/xmpp/BlockSerializer.cpp
+++ b/spectrum/src/frontends/xmpp/BlockSerializer.cpp
@@ -19,7 +19,7 @@ namespace Transport {
 BlockSerializer::BlockSerializer() : Swift::GenericPayloadSerializer<BlockPayload>() {
 }
 
-std::string BlockSerializer::serializePayload(boost::shared_ptr<BlockPayload> attention)  const {
+std::string BlockSerializer::serializePayload(SWIFTEN_SHRPTR_NAMESPACE::shared_ptr<BlockPayload> attention)  const {
 	Swift::XMLElement attentionElement("block", "urn:xmpp:block:0");
 
 	return attentionElement.serialize();