diff --git a/Dockerfile b/Dockerfile
index be01726..07bb5b9 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,6 @@
 # Example Dockerfile for amd64
-ARG BASE_IMAGE
+ARG BASE_IMAGE=alpine:latest
+
 FROM ${BASE_IMAGE}
 
 ARG MAINTAINER