diff --git a/src/lib/deskflow/ipc/DaemonIpcServer.cpp b/src/lib/deskflow/ipc/DaemonIpcServer.cpp
index 92a59b5b4..c719dd291 100644
--- a/src/lib/deskflow/ipc/DaemonIpcServer.cpp
+++ b/src/lib/deskflow/ipc/DaemonIpcServer.cpp
@@ -208,7 +208,7 @@ void DaemonIpcServer::processCommand(QLocalSocket *&clientSocket, const QStringL
   writeToClientSocket(clientSocket, kAckMessage);
 }
 
-void DaemonIpcServer::writeToClientSocket(QLocalSocket *&clientSocket, const QString &message)
+void DaemonIpcServer::writeToClientSocket(QLocalSocket *&clientSocket, const QString &message) const
 {
   QByteArray messageData = message.toUtf8() + '\n';
   qint64 bytesWritten = clientSocket->write(messageData);
diff --git a/src/lib/deskflow/ipc/DaemonIpcServer.h b/src/lib/deskflow/ipc/DaemonIpcServer.h
index cf1ee7825..3bcebbf2d 100644
--- a/src/lib/deskflow/ipc/DaemonIpcServer.h
+++ b/src/lib/deskflow/ipc/DaemonIpcServer.h
@@ -44,7 +44,7 @@ private:
    * \param clientSocket The client socket to write to.
    * \param message The message to write (without trailing newline).
    */
-  void writeToClientSocket(QLocalSocket *&clientSocket, const QString &message);
+  void writeToClientSocket(QLocalSocket *&clientSocket, const QString &message) const;
 
 private Q_SLOTS:
   void handleNewConnection();