1 files changed, 1 insertions, 1 deletions
diff --git a/Swiften/Serializer/PayloadSerializers/DelaySerializer.cpp b/Swiften/Serializer/PayloadSerializers/DelaySerializer.cpp
index 6148632..f809798 100644
--- a/Swiften/Serializer/PayloadSerializers/DelaySerializer.cpp
+++ b/Swiften/Serializer/PayloadSerializers/DelaySerializer.cpp
@@ -14,17 +14,17 @@
 #include <Swiften/Base/DateTime.h>
 
 namespace Swift {
 
 DelaySerializer::DelaySerializer() : GenericPayloadSerializer<Delay>() {
 }
 
 std::string DelaySerializer::serializePayload(boost::shared_ptr<Delay> delay)  const {
 	XMLElement delayElement("delay", "urn:xmpp:delay");
-	if (delay->getFrom()) {
+	if (delay->getFrom() && delay->getFrom()->isValid()) {
 		delayElement.setAttribute("from", delay->getFrom()->toString());
 	}
 	delayElement.setAttribute("stamp", dateTimeToString(delay->getStamp()));
 	return delayElement.serialize();
 }
 
 }