diff --git a/Dockerfile b/Dockerfile
index c22695c..dd168c8 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,9 @@
 FROM alpine:latest AS builder
 LABEL maintainer="fithwum"
 
+ARG ALPINE_VERSION
+ENV ALPINE_VERSION=${ALPINE_VERSION}
+
 WORKDIR /builder
 
 # Install tools needed for building rootfs