diff --git a/ruby/sfml-system/system/Clock.cpp b/ruby/sfml-system/system/Clock.cpp
index 357862697..2a93a8da4 100644
--- a/ruby/sfml-system/system/Clock.cpp
+++ b/ruby/sfml-system/system/Clock.cpp
@@ -21,7 +21,7 @@
  */
  
 #include "Clock.hpp"
-#include "System.hpp"
+#include "main.hpp"
 #include <SFML/System/Clock.hpp>
 
 /* Utility class for manipulating time. */
diff --git a/ruby/sfml-system/system/Vector2.cpp b/ruby/sfml-system/system/Vector2.cpp
index 78cbb72c8..9cb96a2ca 100644
--- a/ruby/sfml-system/system/Vector2.cpp
+++ b/ruby/sfml-system/system/Vector2.cpp
@@ -21,7 +21,7 @@
  */
  
 #include "Vector2.hpp"
-#include "System.hpp"
+#include "main.hpp"
 
 /* SFML::Vector2 is a simple class that defines a mathematical vector with two coordinates (x and y).
  *
diff --git a/ruby/sfml-system/system/Vector3.cpp b/ruby/sfml-system/system/Vector3.cpp
index 95e62b98b..0778c76d7 100644
--- a/ruby/sfml-system/system/Vector3.cpp
+++ b/ruby/sfml-system/system/Vector3.cpp
@@ -21,7 +21,7 @@
  */
  
 #include "Vector3.hpp"
-#include "System.hpp"
+#include "main.hpp"
 
 /* SFML::Vector3 is a simple class that defines a mathematical vector with three coordinates (x, y and z).
  *
diff --git a/ruby/sfml-system/system/System.cpp b/ruby/sfml-system/system/main.cpp
similarity index 98%
rename from ruby/sfml-system/system/System.cpp
rename to ruby/sfml-system/system/main.cpp
index 6536a0edb..cc68a108c 100644
--- a/ruby/sfml-system/system/System.cpp
+++ b/ruby/sfml-system/system/main.cpp
@@ -20,7 +20,7 @@
  *    source distribution.
  */
  
-#include "System.hpp"
+#include "main.hpp"
 #include "Clock.hpp"
 #include "Vector2.hpp"
 #include "Vector3.hpp"
diff --git a/ruby/sfml-system/system/System.hpp b/ruby/sfml-system/system/main.hpp
similarity index 91%
rename from ruby/sfml-system/system/System.hpp
rename to ruby/sfml-system/system/main.hpp
index c2bf7b1cc..fbfd888af 100644
--- a/ruby/sfml-system/system/System.hpp
+++ b/ruby/sfml-system/system/main.hpp
@@ -20,8 +20,8 @@
  *    source distribution.
  */
  
-#ifndef SFML_RUBYEXT_SYSTEM_HEADER_
-#define SFML_RUBYEXT_SYSTEM_HEADER_
+#ifndef SFML_RUBYEXT_MAIN_HEADER_
+#define SFML_RUBYEXT_MAIN_HEADER_
 
 #include "ruby.h"
 
@@ -34,4 +34,4 @@ typedef VALUE ( *RubyFunctionPtr )( ... );
 
 #define FUNCPTR( x ) ( reinterpret_cast< RubyFunctionPtr >( x ) )
 
-#endif // SFML_RUBYEXT_SYSTEM_HEADER_
+#endif // SFML_RUBYEXT_MAIN_HEADER_