diff --git a/perl/TrapReceiver/TrapReceiver.xs b/perl/TrapReceiver/TrapReceiver.xs

index d4ccac9..0ab1a81 100644

--- a/perl/TrapReceiver/TrapReceiver.xs

+++ b/perl/TrapReceiver/TrapReceiver.xs

@@ -73,18 +73,18 @@ int perl_trapd_handler( netsnmp_pdu *pdu,

STOREPDUi("securitymodel", pdu->securityModel);

STOREPDUi("securitylevel", pdu->securityLevel);

STOREPDU("contextName",

- newSVpv(pdu->contextName, pdu->contextNameLen));

+ newSVpv(pdu->contextName ? pdu->contextName : "", pdu->contextNameLen));

STOREPDU("contextEngineID",

- newSVpv(pdu->contextEngineID,

+ newSVpv(pdu->contextEngineID ? (char *) pdu->contextEngineID : "",

pdu->contextEngineIDLen));

STOREPDU("securityEngineID",

- newSVpv(pdu->securityEngineID,

+ newSVpv(pdu->securityEngineID ? (char *) pdu->securityEngineID : "",

pdu->securityEngineIDLen));

STOREPDU("securityName",

- newSVpv(pdu->securityName, pdu->securityNameLen));

+ newSVpv(pdu->securityName ? (char *) pdu->securityName : "", pdu->securityNameLen));

} else {

STOREPDU("community",

- newSVpv(pdu->community, pdu->community_len));

+ newSVpv(pdu->community ? (char *) pdu->community : "", pdu->community_len));

}

if (transport && transport->f_fmtaddr) {