diff --git a/builds/empty_file b/builds/empty_file
deleted file mode 100644
index e69de29..0000000
diff --git a/src/main.go b/src/main.go
index ba5f914..a8e2015 100644
--- a/src/main.go
+++ b/src/main.go
@@ -43,7 +43,7 @@ func init() {
 func update(t float64) {
 
 	sphereMat := RED_MAT
-	sphereMat2 := BLUE_MAT
+	sphereMat2 := GREEN_MAT
 	sphereMat.specularFac = 0.5
 	sphereMat2.specularFac = 0.5
 	sphere := TranslatedSDF{Sphere{10, sphereMat}, Vector3{-15, 100, 10}}