diff --git a/build.sc b/build.mill
similarity index 99%
rename from build.sc
rename to build.mill
index cac003c33..6df9c938c 100644
--- a/build.sc
+++ b/build.mill
@@ -1,3 +1,4 @@
+package build
 // plugins
 import $ivy.`com.lihaoyi::mill-contrib-bloop:$MILL_VERSION`
 import $ivy.`io.get-coursier::coursier-launcher:2.1.0-RC1`