diff --git a/src/main/java/ui/ActionPerformer.java b/src/main/java/ui/ActionPerformer.java
index 6508e5c84dcf2079202f2bff3cba2309961ad410..b8e5151dbf6e5c9b7cfba82aad2110c4623ca0e7 100644
--- a/src/main/java/ui/ActionPerformer.java
+++ b/src/main/java/ui/ActionPerformer.java
@@ -1,3 +1,4 @@
+
 /* Copyright or (C) or Copr. GET / ENST, Telecom-Paris, Ludovic Apvrille
  * 
  * ludovic.apvrille AT enst.fr
diff --git a/src/main/java/ui/MainGUI.java b/src/main/java/ui/MainGUI.java
index 2d4d292a00a7046cf53a94bdd8bc74cff671827d..446c43cb11c9720f94bdfb62e549e9eede1c1e29 100644
--- a/src/main/java/ui/MainGUI.java
+++ b/src/main/java/ui/MainGUI.java
@@ -1,3 +1,4 @@
+
 /* Copyright or (C) or Copr. GET / ENST, Telecom-Paris, Ludovic Apvrille, Andrea Enrici
  *
  * ludovic.apvrille AT enst.fr
diff --git a/src/main/java/ui/TGUIAction.java b/src/main/java/ui/TGUIAction.java
index 24943ebdfdd96d569555508ed4c38a81dd5c8fd0..5a7b509e8ae501a3c9f33afc94277ad6c5c0815a 100644
--- a/src/main/java/ui/TGUIAction.java
+++ b/src/main/java/ui/TGUIAction.java
@@ -1,3 +1,4 @@
+
 /* Copyright or (C) or Copr. GET / ENST, Telecom-Paris, Ludovic Apvrille
  *
  * ludovic.apvrille AT enst.fr