diff --git a/Makefile b/Makefile
index cd8dfe6..5b5fc51 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 #
-# Monicelli: as esoteric language compiler
+# Monicelli: an esoteric language compiler
 # 
 # Copyright (C) 2014 Stefano Sanfilippo
 #
diff --git a/Monicelli.lpp b/Monicelli.lpp
index f750fa3..7d725a1 100644
--- a/Monicelli.lpp
+++ b/Monicelli.lpp
@@ -1,6 +1,6 @@
 %{
 /*
- * Monicelli: as esoteric language compiler
+ * Monicelli: an esoteric language compiler
  * 
  * Copyright (C) 2014 Stefano Sanfilippo
  *
diff --git a/Monicelli.ypp b/Monicelli.ypp
index 028506d..4fa0e33 100644
--- a/Monicelli.ypp
+++ b/Monicelli.ypp
@@ -1,5 +1,5 @@
 /*
- * Monicelli: as esoteric language compiler
+ * Monicelli: an esoteric language compiler
  * 
  * Copyright (C) 2014 Stefano Sanfilippo
  *
diff --git a/Nodes.cpp b/Nodes.cpp
index 9a79398..92853f6 100644
--- a/Nodes.cpp
+++ b/Nodes.cpp
@@ -1,5 +1,5 @@
 /*
- * Monicelli: as esoteric language compiler
+ * Monicelli: an esoteric language compiler
  * 
  * Copyright (C) 2014 Stefano Sanfilippo
  *
diff --git a/Nodes.hpp b/Nodes.hpp
index cf8db39..e635bb3 100644
--- a/Nodes.hpp
+++ b/Nodes.hpp
@@ -2,7 +2,7 @@
 #define NODES_H
 
 /*
- * Monicelli: as esoteric language compiler
+ * Monicelli: an esoteric language compiler
  * 
  * Copyright (C) 2014 Stefano Sanfilippo
  *
diff --git a/Scanner.hpp b/Scanner.hpp
index 15af1e6..6d015b7 100644
--- a/Scanner.hpp
+++ b/Scanner.hpp
@@ -2,7 +2,7 @@
 #define SCANNER_HPP
 
 /*
- * Monicelli: as esoteric language compiler
+ * Monicelli: an esoteric language compiler
  * 
  * Copyright (C) 2014 Stefano Sanfilippo
  *
diff --git a/main.cpp b/main.cpp
index 8b9ceaa..80f690e 100644
--- a/main.cpp
+++ b/main.cpp
@@ -1,5 +1,5 @@
 /*
- * Monicelli: as esoteric language compiler
+ * Monicelli: an esoteric language compiler
  * 
  * Copyright (C) 2014 Stefano Sanfilippo
  *