diff --git a/src/main/java/org/hirw/game/Window.java b/src/main/java/org/hirw/game/Window.java
index 5064261..fc9d929 100644
--- a/src/main/java/org/hirw/game/Window.java
+++ b/src/main/java/org/hirw/game/Window.java
@@ -3,14 +3,11 @@ package org.hirw.game;
 import static org.lwjgl.glfw.Callbacks.*;
 import static org.lwjgl.glfw.GLFW.*;
 import static org.lwjgl.opengl.GL11.*;
-import static org.lwjgl.system.MemoryStack.*;
 import static org.lwjgl.system.MemoryUtil.*;
 
-import java.nio.*;
 import org.lwjgl.Version;
 import org.lwjgl.glfw.*;
 import org.lwjgl.opengl.*;
-import org.lwjgl.system.*;
 
 public class Window {
   private int width, height;