diff --git a/Documentation/doc/Preliminaries.txt b/Documentation/doc/Preliminaries.txt
index d1519da22d7..62e83bf8661 100644
--- a/Documentation/doc/Preliminaries.txt
+++ b/Documentation/doc/Preliminaries.txt
@@ -27,7 +27,7 @@ of the \cgal software.
 \subsection licensesGPL GPL
 
 The \sc{Gpl} is an Open Source license that, if you distribute your software
-based on \sc{Gpl} ed \cgal data structures,you are obliged to distribute the
+based on \sc{Gpl}ed \cgal data structures,you are obliged to distribute the
 source code of your software under the \sc{Gpl}.
 
 The exact license terms can be found at the  Free Software Foundation
@@ -37,7 +37,7 @@ web site: http://www.gnu.org/copyleft/gpl.html.
 
 The \sc{Lgpl} is an Open Source license that obliges you to distribute
 modifications you make on \cgal software accessible to the users.
-In contrast to the \sc{Gpl} , there is no obligation to make the source
+In contrast to the \sc{Gpl}, there is no obligation to make the source
 code of software you build on top of \sc{Lgpl}ed \cgal data structures
 
 The exact license terms can be found at the Free Software Foundation web site: