diff --git a/src/Makefile b/src/Makefile
index 4dc45a53..4e2241d9 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -1,5 +1,5 @@
 build:
 	ocamlbuild -use-ocamlfind -package core -tag thread raytracer.native
 display: build
-	./raytracer.native > foo.ppm
-	display foo.ppm
+	./raytracer.native
+	display matte.ppm