diff --git a/Minecraft.Client/glWrapper.cpp b/Minecraft.Client/glWrapper.cpp
index 93b13d40..540271b9 100644
--- a/Minecraft.Client/glWrapper.cpp
+++ b/Minecraft.Client/glWrapper.cpp
@@ -48,12 +48,13 @@ void glLoadIdentity()
 	RenderManager.MatrixSetIdentity();
 }
 
-extern UINT g_ScreenWidth;
-extern UINT g_ScreenHeight;
+extern int g_iScreenWidth;
+extern int g_iScreenHeight;
 
 void gluPerspective(float fovy, float aspect, float zNear, float zFar)
 {
-	RenderManager.MatrixPerspective(fovy,aspect,zNear,zFar);
+	float dynamicAspect = (float)g_iScreenWidth / (float)g_iScreenHeight;
+	RenderManager.MatrixPerspective(fovy, dynamicAspect, zNear, zFar);
 }
 
 void glOrtho(float left,float right,float bottom,float top,float zNear,float zFar)