diff --git a/syslog.c b/syslog.c
index de11af53..eed060b9 100644
--- a/syslog.c
+++ b/syslog.c
@@ -60,7 +60,7 @@ void syslog_stop(void) __banked
 void syslog_callback(uint16_t lport) __banked
 {
 	uint16_t syslog_hdr;
-	if (lport != state.syslog_conn->lport)
+	if (!state.syslog_conn || lport != state.syslog_conn->lport)
 		return;
 
 	if ((state.readptr != state.writeptr) && state.line_available)