diff --git a/src/DetachableTabBar.cpp b/src/DetachableTabBar.cpp
index 3067e431..fd789e43 100644
--- a/src/DetachableTabBar.cpp
+++ b/src/DetachableTabBar.cpp
@@ -1,30 +1,49 @@
+/*
+    Copyright 2018 by Tomaz Canabrava <tcanabrava@kde.org>
+
+    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
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+    02110-1301  USA.
+*/
+
 #include "DetachableTabBar.h"
 #include <QMouseEvent>
 
 DetachableTabBar::DetachableTabBar(QWidget *parent) :
     QTabBar(parent),
     _draggingOutside(false) {}
 
 void DetachableTabBar::mouseMoveEvent(QMouseEvent *event)
 {
     QTabBar::mouseMoveEvent(event);
     if (!contentsRect().adjusted(-30,-30,30,30).contains(event->pos())) {
         if (!_draggingOutside) {
             _draggingOutside = true;
             _originalCursor = cursor();
             setCursor(QCursor(Qt::DragCopyCursor));
         }
     } else if (_draggingOutside) {
         _draggingOutside = false;
         setCursor(_originalCursor);
     }
 }
 
 void DetachableTabBar::mouseReleaseEvent(QMouseEvent *event)
 {
     QTabBar::mouseReleaseEvent(event);
     if (!contentsRect().adjusted(-30,-30,30,30).contains(event->pos())) {
         setCursor(_originalCursor);
         emit detachTab(currentIndex());
     }
 }
diff --git a/src/DetachableTabBar.h b/src/DetachableTabBar.h
index c356206b..34c0f562 100644
--- a/src/DetachableTabBar.h
+++ b/src/DetachableTabBar.h
@@ -1,21 +1,40 @@
+/*
+    Copyright 2018 by Tomaz Canabrava <tcanabrava@kde.org>
+
+    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
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+    02110-1301  USA.
+*/
+
 #ifndef DETACHABLETABBAR_H
 #define DETACHABLETABBAR_H
 
 #include <QTabBar>
 #include <QCursor>
 
 class DetachableTabBar : public QTabBar {
     Q_OBJECT
 public:
     DetachableTabBar(QWidget *parent = nullptr);
 Q_SIGNALS:
     void detachTab(int idx);
 protected:
     void mouseMoveEvent(QMouseEvent*event) override;
     void mouseReleaseEvent(QMouseEvent *event) override;
 private:
     bool _draggingOutside;
     QCursor _originalCursor;
 };
 
 #endif