diff --git a/src/comm/SerialLink.cc b/src/comm/SerialLink.cc
index 57699d0..dc1b627 100644
--- a/src/comm/SerialLink.cc
+++ b/src/comm/SerialLink.cc
@@ -27,7 +27,7 @@ SerialLink::SerialLink(QString portname, int baudRate, bool hardwareFlowControl,
     m_reqReset(false)
 {
     // We use QSerialPort::SerialPortError in a signal so we must declare it as a meta type
-    static int idMetaType = qRegisterMetaType<QSerialPort::SerialPortError>();
+    static const int idMetaType = qRegisterMetaType<QSerialPort::SerialPortError>();
     Q_UNUSED(idMetaType);
 
     // Get the name of the current port in use.
diff --git a/src/comm/TCPLink.cc b/src/comm/TCPLink.cc
index 8ae8d25..e731fc3 100644
--- a/src/comm/TCPLink.cc
+++ b/src/comm/TCPLink.cc
@@ -46,7 +46,7 @@ TCPLink::TCPLink(QHostAddress hostAddress, quint16 socketPort) :
     // Even though QAbstractSocket::SocketError is used in a signal by Qt, Qt doesn't declare it as a meta type.
     // This in turn causes debug output to be kicked out about not being able to queue the signal. We register it
     // as a meta type to silence that.
-    static int idMetaType = qRegisterMetaType<QAbstractSocket::SocketError>();
+    static const int idMetaType = qRegisterMetaType<QAbstractSocket::SocketError>();
     Q_UNUSED(idMetaType);
     
     _linkId = getNextLinkId();