diff --git a/Makefile b/Makefile
index de36db5..8a0a972 100644
--- a/Makefile
+++ b/Makefile
@@ -1,2 +1,7 @@
 all:
 	ocamlbuild -use-ocamlfind -I src oboy.byte
+
+clean:
+	rm -rf _build
+	rm -f *.byte
+	rm -f *.native