diff --git a/master.h b/master.h
index 8d6ab8c..3183508 100644
--- a/master.h
+++ b/master.h
@@ -1,5 +1,4 @@
-#ifndef MASTER_H
-#define MASTER_H
+#pragma once
 
 #include <QObject>
 #include <QSerialPort>
@@ -42,5 +41,3 @@ private:
     QSerialPort *m_serialPort;
     QTcpServer *m_server;
 };
-
-#endif // MASTER_H
diff --git a/slave.h b/slave.h
index 7f23178..49ff3e1 100644
--- a/slave.h
+++ b/slave.h
@@ -1,5 +1,4 @@
-#ifndef SLAVE_H
-#define SLAVE_H
+#pragma once
 
 #include <QObject>
 
@@ -24,5 +23,3 @@ private Q_SLOTS:
 private:
     QTcpSocket *m_socket;
 };
-
-#endif // SLAVE_H