diff --git a/main/Scene.h b/main/Scene.h
index 9922584..f4ce342 100644
--- a/main/Scene.h
+++ b/main/Scene.h
@@ -46,6 +46,7 @@ class Scene
         void renderPixel(int x, int y, unsigned char * pixel);
         Color traceRay(const Ray & ray);
         std::vector<ShapeDistance> getRayHits(const Ray & ray);
+        int parse(const char * fileName);
 
         /* rendering parameters */
         int m_width;
diff --git a/parser/parser.yy b/parser/parser.yy
index 2ccc5b2..f303456 100644
--- a/parser/parser.yy
+++ b/parser/parser.yy
@@ -47,8 +47,6 @@ enum Node_Type
     Node_Options
 };
 
-static Scene * g_scene;
-
 #define YYSTYPE refptr<Node>
 
 %}
@@ -289,9 +287,8 @@ vector: LESS number COMMA number COMMA number GREATER {
 
 %%
 
-int parse(Scene * scene, const char * fileName)
+int Scene::parse(const char * fileName)
 {
-    g_scene = scene;
     yyin = fopen(fileName, "r");
     if (yyin == NULL)
     {
@@ -299,6 +296,7 @@ int parse(Scene * scene, const char * fileName)
         return -1;
     }
     yyparse();
+    return 0;
 }
 
 Node::Node()