diff --git a/drone-starlark/repos/map.star b/drone-starlark/repos/map.star
new file mode 100644
index 0000000..d7828a0
--- /dev/null
+++ b/drone-starlark/repos/map.star
@@ -0,0 +1,2 @@
+def map(fn, l):
+  return [fn(x) for x in l]
diff --git a/drone-starlark/repos/print-secrets.star b/drone-starlark/repos/print-secrets.star
index 75ef634..ddd076b 100644
--- a/drone-starlark/repos/print-secrets.star
+++ b/drone-starlark/repos/print-secrets.star
@@ -1,3 +1,5 @@
+load("@this//:map.star", "map")
+
 def echo(secret):
   return 'echo "export {environment}=${environment}" >> ***filename*** # {secret}'.format(
       secret = secret,