diff --git a/Makefile b/Makefile
new file mode 100644
index 00000000..60c2fdcc
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,9 @@
+.PHONY: image test
+
+IMAGE_NAME ?= codeclimate/codeclimate-duplication
+
+image:
+	docker build --rm -t $(IMAGE_NAME) .
+
+test: image
+	docker run --rm $(IMAGE_NAME) bundle exec rake
diff --git a/bin/test b/bin/test
deleted file mode 100755
index 5da597c1..00000000
--- a/bin/test
+++ /dev/null
@@ -1,5 +0,0 @@
-#!/bin/sh
-set -ex
-
-docker build -t codeclimate/codeclimate-duplication .
-docker run codeclimate/codeclimate-duplication bundle exec rake