diff --git a/packer/validate.bash b/packer/validate.bash
index a4957fe..ab4f836 100755
--- a/packer/validate.bash
+++ b/packer/validate.bash
@@ -2,7 +2,6 @@
 
 set -euo pipefail
 
-: ${DOCKER_REPO_BASE}
 : ${ADMIN_PASSWORD}
 : ${ADMIN_SSH_PUBLIC_KEY_FILE}
 : ${DEPLOY_SSH_PUBLIC_KEY_FILE}