diff --git a/graphics.cc b/graphics.cc
index 10039eb..9e5e6b8 100644
--- a/graphics.cc
+++ b/graphics.cc
@@ -1,13 +1,4 @@
-#include "main.hh"
-
-#include <ACGL/OpenGL/Creator/ShaderProgramCreator.hh>
-#include <ACGL/OpenGL/Creator/VertexArrayObjectCreator.hh>
-#include <ACGL/OpenGL/Creator/Texture2DCreator.hh>
-#include <ACGL/OpenGL/Objects.hh>
-#include <ACGL/Base/Settings.hh>
-#include <ACGL/Math/Math.hh>
-#include <ACGL/OpenGL/Data/TextureLoadStore.hh>
-#include <ACGL/OpenGL/Managers.hh>
+#include "graphics.hh"
 
 using namespace std;
 using namespace ACGL::OpenGL;
diff --git a/graphics.hh b/graphics.hh
index ee55c9f..14c1c8f 100644
--- a/graphics.hh
+++ b/graphics.hh
@@ -1,7 +1,16 @@
 #ifndef GRAPHICS_HH_INCLUDED
 #define GRAPHICS_HH_INCLUDED
 
-#endif
+#include "main.hh"
+
+#include <ACGL/OpenGL/Creator/ShaderProgramCreator.hh>
+#include <ACGL/OpenGL/Creator/VertexArrayObjectCreator.hh>
+#include <ACGL/OpenGL/Creator/Texture2DCreator.hh>
+#include <ACGL/OpenGL/Objects.hh>
+#include <ACGL/Base/Settings.hh>
+#include <ACGL/Math/Math.hh>
+#include <ACGL/OpenGL/Data/TextureLoadStore.hh>
+#include <ACGL/OpenGL/Managers.hh>
 
 // gets called after the OpenGL window is prepared, init of example specific stuff:
 void initCustomResources();
@@ -17,3 +26,5 @@ void resizeCallback( GLFWwindow *, int newWidth, int newHeight );
 
 // to build the projection matrix:
 glm::mat4 buildFrustum( float phiInDegree, float near, float far, float aspectRatio);
+
+#endif