diff --git a/build-image.sh b/build-image.sh
index 598fd27..fe3f2d9 100755
--- a/build-image.sh
+++ b/build-image.sh
@@ -6,7 +6,10 @@ set -uxa
 
 GPG_SIGNING_KEY="${GPG_SIGNING_KEY:-0x0F1DEAB2D36AD112}"
 
-IMAGE_TAG="git.holgersson.xyz/gentoo-related/gentoo-binpkg-builder:$(date --utc +%Y%m%d_%H%M%S)"
+REGISTRY="git.holgersson.xyz/gentoo-related/gentoo-binpkg-builder"
+VERSION="$(date --utc +%Y%m%d_%H%M%S)"
+IMAGE_TAG="${REGISTRY}:${VERSION}"
+
 REPOS="${REPOS:-/var/db/repos}"
 DISTFILES="${DISTFILES:-/var/cache/distfiles-podman-1}"
 BINPKG="${BINPKG:-/var/cache/packages-podman-1}"