diff --git a/src/main.cpp b/src/main.cpp
index 6295556..55d8f15 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -6,6 +6,13 @@
 #include "blt/gfx/renderer/resource_manager.h"
 #include "blt/gfx/renderer/batch_2d_renderer.h"
 
+class node
+{
+    node* left;
+    node* right;
+    
+};
+
 blt::gfx::matrix_state_manager global_matrices;
 blt::gfx::resource_manager resources;
 blt::gfx::batch_renderer_2d renderer_2d(resources);