diff --git a/glm/core/dummy.cpp b/glm/core/dummy.cpp
index 68bb8c29..36fa6278 100644
--- a/glm/core/dummy.cpp
+++ b/glm/core/dummy.cpp
@@ -1,17 +1,18 @@
 ///////////////////////////////////////////////////////////////////////////////////////////////////
 // OpenGL Mathematics Copyright (c) 2005 - 2010 G-Truc Creation (www.g-truc.net)
-////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+///////////////////////////////////////////////////////////////////////////////////////////////////
 // Created : 2011-01-19
 // Updated : 2011-01-19
 // Licence : This source is under MIT License
 // File    : glm/setup.hpp
 ///////////////////////////////////////////////////////////////////////////////////////////////////
-// Dummy file, GLM is a header only library
+// GLM is a header only library. There is nothing to compile. 
+// dummy.cpp exist only a wordaround for CMake file.
 
 #include "../glm.hpp"
 #include "../ext.hpp"
 
-//#error "GLM is a header only library, there is nothing to compile. dummy.cpp and the CMake file are only here for GLM development purposes"
+//#error "GLM is a header only library"
 
 int main()
 {
diff --git a/glm/setup.hpp b/glm/setup.hpp
index 483cea09..bc7210ec 100644
--- a/glm/setup.hpp
+++ b/glm/setup.hpp
@@ -1,6 +1,6 @@
 ///////////////////////////////////////////////////////////////////////////////////////////////////
 // OpenGL Mathematics Copyright (c) 2005 - 2010 G-Truc Creation (www.g-truc.net)
-////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+///////////////////////////////////////////////////////////////////////////////////////////////////
 // Created : 2006-11-13
 // Updated : 2010-01-28
 // Licence : This source is under MIT License