diff --git a/Source/RMG/UserInterface/Dialog/Cheats/AddCheatDialog.cpp b/Source/RMG/UserInterface/Dialog/Cheats/AddCheatDialog.cpp
index 35701b1e..73ce4e16 100644
--- a/Source/RMG/UserInterface/Dialog/Cheats/AddCheatDialog.cpp
+++ b/Source/RMG/UserInterface/Dialog/Cheats/AddCheatDialog.cpp
@@ -18,7 +18,6 @@
 #include <iostream>
 
 #include <RMG-Core/Core.hpp>
-#include <qpushbutton.h>
 
 using namespace UserInterface::Dialog;
 
diff --git a/Source/RMG/UserInterface/Dialog/Update/DownloadUpdateDialog.hpp b/Source/RMG/UserInterface/Dialog/Update/DownloadUpdateDialog.hpp
index c7e6f467..f63cfe4b 100644
--- a/Source/RMG/UserInterface/Dialog/Update/DownloadUpdateDialog.hpp
+++ b/Source/RMG/UserInterface/Dialog/Update/DownloadUpdateDialog.hpp
@@ -16,7 +16,6 @@
 #include <QNetworkReply>
 
 #include <RMG-Core/Core.hpp>
-#include <qglobal.h>
 
 #include "ui_DownloadUpdateDialog.h"
 
diff --git a/Source/RMG/UserInterface/EventFilter.cpp b/Source/RMG/UserInterface/EventFilter.cpp
index 3ed8c2ba..697a775f 100644
--- a/Source/RMG/UserInterface/EventFilter.cpp
+++ b/Source/RMG/UserInterface/EventFilter.cpp
@@ -1,6 +1,13 @@
+/*
+ * Rosalie's Mupen GUI - https://github.com/Rosalie241/RMG
+ *  Copyright (C) 2020 Rosalie Wanders <rosalie@mailbox.org>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 3.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
 #include "EventFilter.hpp"
-#include <qcoreevent.h>
-#include <qobject.h>
 
 using namespace UserInterface;
 
diff --git a/Source/RMG/UserInterface/EventFilter.hpp b/Source/RMG/UserInterface/EventFilter.hpp
index 6f3c4c18..3e2bd5cd 100644
--- a/Source/RMG/UserInterface/EventFilter.hpp
+++ b/Source/RMG/UserInterface/EventFilter.hpp
@@ -1,3 +1,12 @@
+/*
+ * Rosalie's Mupen GUI - https://github.com/Rosalie241/RMG
+ *  Copyright (C) 2020 Rosalie Wanders <rosalie@mailbox.org>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 3.
+ *  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 EVENTFILTER_HPP
 #define EVENTFILTER_HPP