diff --git a/images/nova/Earthfile b/images/nova/Earthfile
index 2780578..9b3f764 100644
--- a/images/nova/Earthfile
+++ b/images/nova/Earthfile
@@ -1,5 +1,6 @@
 VERSION 0.7
 
+ARG --global REGISTRY=ghcr.io/vexxhost/atmosphere
 ARG --global PROJECT=nova
 ARG --global RELEASE=zed
 ARG --global PROJECT_REF=226f3e95c1cdadd1845c7adee55f5c5f29f3a7a8
@@ -17,8 +18,8 @@
     --PACKAGES "ceph-common genisoimage iproute2 libosinfo-bin lsscsi ndctl nvme-cli openssh-client ovmf python3-libvirt python3-rados python3-rbd qemu-efi-aarch64 qemu-utils sysfsutils udev util-linux"
   GIT CLONE --branch v1.4.0 https://github.com/novnc/noVNC.git /usr/share/novnc
   SAVE IMAGE --push \
-    ghcr.io/vexxhost/atmosphere/${PROJECT}:${RELEASE} \
-    ghcr.io/vexxhost/atmosphere/${PROJECT}:${PROJECT_REF}
+    ${REGISTRY}/${PROJECT}:${RELEASE} \
+    ${REGISTRY}/${PROJECT}:${PROJECT_REF}
 
 image:
   BUILD --platform linux/amd64 --platform linux/arm64 +platform-image