diff --git a/.dockerignore b/.dockerignore
index 9638996..f6919cf 100644
--- a/.dockerignore
+++ b/.dockerignore
@@ -2,5 +2,6 @@
 !autobuild.sh
 !configure.ac
 !Makefile.am
-!src/**
-!.git/**
+!src/*.c
+!src/*.h
+!src/Makefile.am
diff --git a/Dockerfile b/Dockerfile
index aff3f39..87c95b9 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,12 +1,17 @@
+#####
 FROM alpine AS build-env
-RUN apk add --no-cache util-linux-dev gcc autoconf automake make openssl-dev json-c-dev musl-dev git
+RUN apk add --no-cache util-linux-dev gcc autoconf automake make openssl-dev json-c-dev musl-dev
 
 ADD . /work
 WORKDIR /work
 
-RUN ./autobuild.sh
+ARG GIT_VERSION
+RUN GIT_VERSION=${GIT_VERSION:-unknown} ./autobuild.sh
 
+#####
 FROM alpine
+ARG GIT_VERSION
+LABEL version=${GIT_VERSION:-unknown}
 RUN apk add --no-cache libuuid json-c
 COPY --from=build-env /work/src/rmbt /bin/rmbt
 ENTRYPOINT ["/bin/rmbt"]
diff --git a/autobuild.sh b/autobuild.sh
index 0faa3f7..0891a86 100755
--- a/autobuild.sh
+++ b/autobuild.sh
@@ -1,5 +1,5 @@
 #!/bin/sh
 set -e
 [ -e configure ] || autoreconf -i
-[ -e Makefile ]  || ( ./configure && make )
-[ -e src/rmbt ] || make
+[ -e Makefile ]  || ./configure
+make ${GIT_VERSION:+GIT_VERSION="$GIT_VERSION"}
diff --git a/docker-build.sh b/docker-build.sh
new file mode 100755
index 0000000..9d1a1a0
--- /dev/null
+++ b/docker-build.sh
@@ -0,0 +1,3 @@
+#!/bin/sh
+
+docker build --build-arg "GIT_VERSION=$(git describe --abbrev=9 --dirty --always --tags --long 2> /dev/null)" -t rmbt .