diff --git a/core/networkpacket.h b/core/networkpacket.h
--- a/core/networkpacket.h
+++ b/core/networkpacket.h
@@ -49,7 +49,8 @@
     //const static QCA::EncryptionAlgorithm EncryptionAlgorithm;
     const static int s_protocolVersion;
 
-    explicit NetworkPacket(const QString& type, const QVariantMap& body = {});
+    explicit NetworkPacket(const QString& type = QStringLiteral("empty"), const QVariantMap& body = {});
+    NetworkPacket(const NetworkPacket& other); // Copy constructor, required for QMetaType and queued signals
 
     static void createIdentityPacket(NetworkPacket*);
 
@@ -97,5 +98,6 @@
 };
 
 KDECONNECTCORE_EXPORT QDebug operator<<(QDebug s, const NetworkPacket& pkg);
+Q_DECLARE_METATYPE(NetworkPacket)
 
 #endif // NETWORKPACKET_H
diff --git a/core/networkpacket.cpp b/core/networkpacket.cpp
--- a/core/networkpacket.cpp
+++ b/core/networkpacket.cpp
@@ -55,6 +55,15 @@
 {
 }
 
+NetworkPacket::NetworkPacket(const NetworkPacket& other)
+    : m_id(other.m_id)
+    , m_type(other.m_type)
+    , m_body(QVariantMap(other.m_body))
+    , m_payload(other.m_payload)
+    , m_payloadSize(other.m_payloadSize)
+{
+}
+
 void NetworkPacket::createIdentityPacket(NetworkPacket* np)
 {
     KdeConnectConfig* config = KdeConnectConfig::instance();