diff --git a/src/Config.h b/src/Config.h
index 8966f2d0..eb3de519 100644
--- a/src/Config.h
+++ b/src/Config.h
@@ -1,6 +1,6 @@
 /*
 obs-websocket
-Copyright (C) 2016-2017	Stéphane Lepin <stephane.lepin@gmail.com>
+Copyright (C) 2016-2019	Stéphane Lepin <stephane.lepin@gmail.com>
 
 This program is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
@@ -16,8 +16,7 @@ You should have received a copy of the GNU General Public License along
 with this program. If not, see <https://www.gnu.org/licenses/>
 */
 
-#ifndef CONFIG_H
-#define CONFIG_H
+#pragma once
 
 #include <QString>
 #include <QSharedPointer>
@@ -55,5 +54,3 @@ class Config {
 	private:
 		static ConfigPtr _instance;
 };
-
-#endif // CONFIG_H
diff --git a/src/Utils.h b/src/Utils.h
index 651991d6..040f6d01 100644
--- a/src/Utils.h
+++ b/src/Utils.h
@@ -1,6 +1,6 @@
 /*
 obs-websocket
-Copyright (C) 2016-2017	Stéphane Lepin <stephane.lepin@gmail.com>
+Copyright (C) 2016-2019	Stéphane Lepin <stephane.lepin@gmail.com>
 
 This program is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
@@ -16,8 +16,7 @@ You should have received a copy of the GNU General Public License along
 with this program. If not, see <https://www.gnu.org/licenses/>
 */
 
-#ifndef UTILS_H
-#define UTILS_H
+#pragma once
 
 #include <stdio.h>
 
@@ -80,5 +79,3 @@ class Utils {
 	static const char* GetFilenameFormatting();
 	static bool SetFilenameFormatting(const char* filenameFormatting);
 };
-
-#endif // UTILS_H
diff --git a/src/WSEvents.h b/src/WSEvents.h
index 97187404..48de519d 100644
--- a/src/WSEvents.h
+++ b/src/WSEvents.h
@@ -1,6 +1,6 @@
 /*
 obs-websocket
-Copyright (C) 2016-2017	Stéphane Lepin <stephane.lepin@gmail.com>
+Copyright (C) 2016-2019	Stéphane Lepin <stephane.lepin@gmail.com>
 Copyright (C) 2017	Brendan Hagan <https://github.com/haganbmj>
 
 This program is free software; you can redistribute it and/or modify
@@ -17,8 +17,7 @@ You should have received a copy of the GNU General Public License along
 with this program. If not, see <https://www.gnu.org/licenses/>
 */
 
-#ifndef WSEVENTS_H
-#define WSEVENTS_H
+#pragma once
 
 #include <obs.hpp>
 #include <obs-frontend-api.h>
@@ -118,5 +117,3 @@ private:
 	static void OnSceneItemDelete(void* param, calldata_t* data);
 	static void OnSceneItemVisibilityChanged(void* param, calldata_t* data);
 };
-
-#endif // WSEVENTS_H
diff --git a/src/WSRequestHandler.h b/src/WSRequestHandler.h
index 19aa22bc..9d87366d 100644
--- a/src/WSRequestHandler.h
+++ b/src/WSRequestHandler.h
@@ -1,6 +1,6 @@
 /*
 obs-websocket
-Copyright (C) 2016-2017	Stéphane Lepin <stephane.lepin@gmail.com>
+Copyright (C) 2016-2019	Stéphane Lepin <stephane.lepin@gmail.com>
 Copyright (C) 2017	Mikhail Swift <https://github.com/mikhailswift>
 
 This program is free software; you can redistribute it and/or modify
@@ -17,8 +17,7 @@ You should have received a copy of the GNU General Public License along
 with this program. If not, see <https://www.gnu.org/licenses/>
 */
 
-#ifndef WSREQUESTHANDLER_H
-#define WSREQUESTHANDLER_H
+#pragma once
 
 #include <QHash>
 #include <QSet>
@@ -150,5 +149,3 @@ class WSRequestHandler : public QObject {
 		static HandlerResponse HandleSetBrowserSourceProperties(WSRequestHandler* req);
 		static HandlerResponse HandleGetBrowserSourceProperties(WSRequestHandler* req);
 };
-
-#endif // WSPROTOCOL_H
diff --git a/src/WSServer.h b/src/WSServer.h
index eee056d8..d3e2e3eb 100644
--- a/src/WSServer.h
+++ b/src/WSServer.h
@@ -1,6 +1,6 @@
 /*
 obs-websocket
-Copyright (C) 2016-2017	Stéphane Lepin <stephane.lepin@gmail.com>
+Copyright (C) 2016-2019	Stéphane Lepin <stephane.lepin@gmail.com>
 
 This program is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
@@ -16,8 +16,7 @@ You should have received a copy of the GNU General Public License along
 with this program. If not, see <https://www.gnu.org/licenses/>
 */
 
-#ifndef WSSERVER_H
-#define WSSERVER_H
+#pragma once
 
 #include <QObject>
 #include <QMutex>
@@ -73,5 +72,3 @@ private:
 	std::map<connection_hdl, QVariantHash, std::owner_less<connection_hdl>> _connectionProperties;
 	QMutex _clMutex;
 };
-
-#endif // WSSERVER_H
diff --git a/src/forms/settings-dialog.h b/src/forms/settings-dialog.h
index 17433f1d..665d29de 100644
--- a/src/forms/settings-dialog.h
+++ b/src/forms/settings-dialog.h
@@ -1,6 +1,6 @@
 /*
 obs-websocket
-Copyright (C) 2016-2017	Stéphane Lepin <stephane.lepin@gmail.com>
+Copyright (C) 2016-2019	Stéphane Lepin <stephane.lepin@gmail.com>
 
 This program is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
@@ -16,8 +16,7 @@ You should have received a copy of the GNU General Public License along
 with this program. If not, see <https://www.gnu.org/licenses/>
 */
 
-#ifndef SETTINGSDIALOG_H
-#define SETTINGSDIALOG_H
+#pragma once
 
 #include <QDialog>
 
@@ -40,5 +39,3 @@ private Q_SLOTS:
 private:
 	Ui::SettingsDialog* ui;
 };
-
-#endif // SETTINGSDIALOG_H
diff --git a/src/obs-websocket.h b/src/obs-websocket.h
index 0bb4aed3..a4aa8016 100644
--- a/src/obs-websocket.h
+++ b/src/obs-websocket.h
@@ -1,6 +1,6 @@
 /*
 obs-websocket
-Copyright (C) 2016-2017	Stéphane Lepin <stephane.lepin@gmail.com>
+Copyright (C) 2016-2019	Stéphane Lepin <stephane.lepin@gmail.com>
 
 This program is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
@@ -16,8 +16,7 @@ You should have received a copy of the GNU General Public License along
 with this program. If not, see <https://www.gnu.org/licenses/>
 */
 
-#ifndef OBSWEBSOCKET_H
-#define OBSWEBSOCKET_H
+#pragma once
 
 #include <obs.hpp>
 
@@ -42,5 +41,3 @@ using OBSOutputAutoRelease =
 #define OBS_WEBSOCKET_VERSION "4.5.0"
 
 #define blog(level, msg, ...) blog(level, "[obs-websocket] " msg, ##__VA_ARGS__)
-
-#endif // OBSWEBSOCKET_H