diff --git a/examples/simple-s3/main.cue b/examples/simple-s3/main.cue
index 046da4e7..848ffc96 100644
--- a/examples/simple-s3/main.cue
+++ b/examples/simple-s3/main.cue
@@ -14,6 +14,7 @@ awsConfig: aws.#Config & {
 // Name of the S3 bucket to use
 bucket: *"dagger-io-examples" | string @dagger(input)
 
+// Source code to deploy
 source: dagger.#Artifact @dagger(input)
 url:    "\(deploy.url)index.html"