diff --git a/pkg/universe.dagger.io/examples/helloworld/main.cue b/pkg/universe.dagger.io/examples/helloworld/helloworld.cue
similarity index 80%
rename from pkg/universe.dagger.io/examples/helloworld/main.cue
rename to pkg/universe.dagger.io/examples/helloworld/helloworld.cue
index 4fbf1911..4fd7dc58 100644
--- a/pkg/universe.dagger.io/examples/helloworld/main.cue
+++ b/pkg/universe.dagger.io/examples/helloworld/helloworld.cue
@@ -5,17 +5,18 @@
 // 9:06AM INF actions.hello | computing
 // 9:06AM INF actions.hello | #3 0.073 hello, world!
 // 9:06AM INF actions.hello | completed    duration=100ms
-package main
+package helloworld
 
 import (
 	"dagger.io/dagger"
+	"dagger.io/dagger/core"
 )
 
 dagger.#Plan & {
 	actions: {
-		_alpine: dagger.#Pull & {source: "alpine:3"}
+		_alpine: core.#Pull & {source: "alpine:3"}
 		// Hello world
-		hello: dagger.#Exec & {
+		hello: core.#Exec & {
 			input: _alpine.output
 			args: ["echo", "hello, world!"]
 			always: true