diff --git a/src/Main/GLWindow.cpp b/src/Main/GLWindow.cpp
index 00685e5..02572e8 100644
--- a/src/Main/GLWindow.cpp
+++ b/src/Main/GLWindow.cpp
@@ -6,6 +6,7 @@
 #endif
 
 #include "GLWindow.h"
+#include "Game.h"
 
 using std::string;
 
diff --git a/src/Main/GLWindow.h b/src/Main/GLWindow.h
index a2476fb..9c6cb36 100644
--- a/src/Main/GLWindow.h
+++ b/src/Main/GLWindow.h
@@ -2,6 +2,9 @@
 #include <GL/glx.h>
 #include <glx/glxext.h>
 
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <X11/extensions/xf86vmode.h>
 #include <X11/keysym.h>
 #include <ctime>
 
diff --git a/src/Main/Makefile b/src/Main/Makefile
index 7d2f480..e364ef3 100644
--- a/src/Main/Makefile
+++ b/src/Main/Makefile
@@ -2,7 +2,7 @@ CC	= g++
 CFLAGS	= -ansi -Wall -g
 LDADD	= -lGL -lGLU -lSDL -lSDL_image
 
-objects = GLWindow.o \
+objects = GLWindow.o Game.o \
 
 
 .PHONY: default all clean