diff --git a/ledset/pcaprethread.cpp b/ledset/pcaprethread.cpp
index 339db72..2f1976d 100644
--- a/ledset/pcaprethread.cpp
+++ b/ledset/pcaprethread.cpp
@@ -1,6 +1,7 @@
 #include "pcaprethread.h"
 
 PcapReThread::PcapReThread(pcap_t *pcap) : pcap(pcap) {
+    qRegisterMetaType<Resp>("Resp");
     connect(this, &QThread::finished, this, &QThread::deleteLater);
     connect(this, &PcapReThread::onMsg, this, [](Resp resp, const QByteArray data) {
         resp.callback(data);