diff --git a/package/main.roc b/package/main.roc
index 14d9aa2..1657324 100644
--- a/package/main.roc
+++ b/package/main.roc
@@ -1,6 +1,7 @@
 package [
     Opt,
     Base,
+    Builder,
     Cli,
     ErrorFormatter,
     Help,