diff --git a/hack/docker-build b/hack/docker-build
index 29963be..8413d2b 100755
--- a/hack/docker-build
+++ b/hack/docker-build
@@ -1,8 +1,11 @@
 #! /bin/bash
 set -ex
+
+GIT_TAG=$(git describe --always --dirty)
+
 case "$1" in
-commit) tag=$(git describe --always --dirty) ;;
+commit) tag=$GIT_TAG ;;
 "")     tag=latest ;;
 *)      tag=$1 ;;
 esac
-docker build -t novit.tech/direktil/local-server:$tag .
+docker build -t novit.tech/direktil/local-server:$tag . --build-arg GIT_TAG=$GIT_TAG