diff --git a/mirror.sh b/mirror.sh
index 0606079..5c0b6bb 100755
--- a/mirror.sh
+++ b/mirror.sh
@@ -106,7 +106,7 @@ function get_arm64_image() {
 function login_to_registry() {
 	# Login to registry.
 	echo "Logging into '${REGISTRY}' as '${USER}'..."
-	docker login -u "${USER}" -p "${PASSWORD}" "${REGISTRY}"
+	docker login -u "${REGISTRY_USERNAME}" -p "${REGISTRY_PASSWORD}" "${REGISTRY}"
 }
 
 function mirror() {