diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..01a92e8
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,4 @@
+## Build docker image
+.PHONY: docker-build
+docker-build:
+	docker build -t vulcanize/tx_spammer -f Dockerfile .
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