diff --git a/mix/ApplicationCtx.cpp b/mix/ApplicationCtx.cpp
index 1c8ed9820..7475c1b57 100644
--- a/mix/ApplicationCtx.cpp
+++ b/mix/ApplicationCtx.cpp
@@ -14,10 +14,10 @@
     You should have received a copy of the GNU General Public License
     along with cpp-ethereum.  If not, see <http://www.gnu.org/licenses/>.
 */
-/** @file main.cpp
- * @author Gav Wood <i@gavwood.com>
+/** @file ApplicationCtx.cpp
+ * @author Yann yann@ethdev.com
  * @date 2014
- * Ethereum client.
+ * Ethereum IDE client.
  */
 
 #include "ApplicationCtx.h"
diff --git a/mix/ApplicationCtx.h b/mix/ApplicationCtx.h
index f54eb7f09..68806cc33 100644
--- a/mix/ApplicationCtx.h
+++ b/mix/ApplicationCtx.h
@@ -1,3 +1,25 @@
+/*
+    This file is part of cpp-ethereum.
+
+    cpp-ethereum 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 3 of the License, or
+    (at your option) any later version.
+
+    cpp-ethereum 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 cpp-ethereum.  If not, see <http://www.gnu.org/licenses/>.
+*/
+/** @file ApplicationCtx.h
+ * @author Yann yann@ethdev.com
+ * @date 2014
+ * Ethereum IDE client.
+ */
+
 #ifndef APPLICATIONCONTEXT_H
 #define APPLICATIONCONTEXT_H
 
diff --git a/mix/CodeEditorExtensionMan.cpp b/mix/CodeEditorExtensionMan.cpp
index d9691fb42..d1ad6c075 100644
--- a/mix/CodeEditorExtensionMan.cpp
+++ b/mix/CodeEditorExtensionMan.cpp
@@ -1,3 +1,25 @@
+/*
+    This file is part of cpp-ethereum.
+
+    cpp-ethereum 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 3 of the License, or
+    (at your option) any later version.
+
+    cpp-ethereum 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 cpp-ethereum.  If not, see <http://www.gnu.org/licenses/>.
+*/
+/** @file CodeEditorExtensionMan.cpp
+ * @author Yann yann@ethdev.com
+ * @date 2014
+ * Ethereum IDE client.
+ */
+
 #include <QQuickItem>
 #include <QGraphicsObject>
 #include <QtDeclarative/QDeclarativeEngine>
diff --git a/mix/CodeEditorExtensionMan.h b/mix/CodeEditorExtensionMan.h
index cfe505c09..32f435338 100644
--- a/mix/CodeEditorExtensionMan.h
+++ b/mix/CodeEditorExtensionMan.h
@@ -1,3 +1,25 @@
+/*
+    This file is part of cpp-ethereum.
+
+    cpp-ethereum 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 3 of the License, or
+    (at your option) any later version.
+
+    cpp-ethereum 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 cpp-ethereum.  If not, see <http://www.gnu.org/licenses/>.
+*/
+/** @file CodeEditorExtensionMan.h
+ * @author Yann yann@ethdev.com
+ * @date 2014
+ * Ethereum IDE client.
+ */
+
 #ifndef CODEEDITOREXTENSIONMANAGER_H
 #define CODEEDITOREXTENSIONMANAGER_H
 
diff --git a/mix/ConstantCompilation.cpp b/mix/ConstantCompilation.cpp
index 8a2d14af9..34f5b3967 100644
--- a/mix/ConstantCompilation.cpp
+++ b/mix/ConstantCompilation.cpp
@@ -1,3 +1,25 @@
+/*
+    This file is part of cpp-ethereum.
+
+    cpp-ethereum 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 3 of the License, or
+    (at your option) any later version.
+
+    cpp-ethereum 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 cpp-ethereum.  If not, see <http://www.gnu.org/licenses/>.
+*/
+/** @file ConstantCompilation.cpp
+ * @author Yann yann@ethdev.com
+ * @date 2014
+ * Ethereum IDE client.
+ */
+
 #include "ConstantCompilation.h"
 #include <QQuickItem>
 #include <QtCore/QFileInfo>
diff --git a/mix/Feature.cpp b/mix/Feature.cpp
index f3239252f..309cf7eff 100644
--- a/mix/Feature.cpp
+++ b/mix/Feature.cpp
@@ -1,3 +1,25 @@
+/*
+    This file is part of cpp-ethereum.
+
+    cpp-ethereum 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 3 of the License, or
+    (at your option) any later version.
+
+    cpp-ethereum 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 cpp-ethereum.  If not, see <http://www.gnu.org/licenses/>.
+*/
+/** @file Feature.cpp
+ * @author Yann yann@ethdev.com
+ * @date 2014
+ * Ethereum IDE client.
+ */
+
 #include "Feature.h"
 #include "ApplicationCtx.h"
 #include <libevm/VM.h>